Solve in Q in the equation 2+3x=7
Question
Updated 5/7/2014 5:32:52 PM
This conversation has been flagged as incorrect.
Flagged by andrewpallarca [5/7/2014 4:50:15 PM]
Original conversation
User: Solve in Q in the equation 2+3x=7

Weegy: In answer to Your Question: Solution Set would be the values found for x%5B1%5D , [ x%5B2%5D x%5E2-3x=7 Written as an Quadratic Equation: x%5E2-3x-7=0 . Using the Quadratic Formula to Solve: x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ . Solved by pluggable solver: SOLVE quadratic equation with variable Quadratic equation ax%5E2%2Bbx%2Bc=0 (in our case 1x%5E2%2B-3x%2B-7+=+0) has the following solutons: x%5B12%5D+=+%28b%2B-sqrt%28+b%5E2-4ac+%29%29%2F2%5Ca For these solutions to exist, the discriminant b%5E2-4ac should not be a negative number. First, we need to compute the discriminant b%5E2-4ac: b%5E2-4ac=%28-3%29%5E2-4%2A1%2A-7=37. Discriminant d=37 is greater than zero. That means that there are two solutions: +x%5B12%5D+=+%28- 3%2B-sqrt%28+37+%29%29%2F2%5Ca. x%5B1%5D+=+%28-%28-3%29%2Bsqrt%28+37+%29%29%2F2%5C1+=+4.54138126514911 x%5B2%5D+=+%28-%28-3%29-sqrt%28+37+%29%29%2F2%5C1+=+-1.54138126514911 Quadratic expression 1x%5E2%2B-3x%2B-7 can be factored: 1x%5E2%2B-3x%2B-7+=+1%28x-4.54138126514911%29%2A%28x- 1.54138126514911%29 Again, the answer is: 4.54138126514911, -1.54138126514911. Here's your graph: graph%28+500%2C+500%2C+-10%2C+10%2C+-20%2C+20%2C+1%2Ax%5E2%2B-3%2Ax%2B-7+%29 ]

Question
Updated 5/7/2014 5:32:52 PM
This conversation has been flagged as incorrect.
Flagged by andrewpallarca [5/7/2014 4:50:15 PM]
Rating
3
2 + 3x = 7;

3x = 7 - 2;

3x = 5;

x = 5/3
0
2 + 3x = 7
3x = 7 - 2
x = 5/3
tektek10, please make sure to not miss a single step on solutions for equations. It's important that a solution is complete so the user would understand clearly.
Okay, I thought that dividing the variable on the right side right after subtraction would be enough as answer.
Yes, but it you didn't show the answer to 7 - 2 , you skipped to division right away, but it's not a big deal.

It would just be more helpful to show complete solutions.
Questions asked by the same visitor
Endangered species
Weegy: African black rhinoceros, passenger pigeon and the California condor are all endangered species. (More)
Question
Updated 3/28/2015 1:02:43 AM

Endangered species are those considered to be at risk of extinction.

29,547,380
*
Get answers from Weegy and a team of really smart live experts.
Popular Conversations
An underground
Weegy: An underground is an adverb which means beneath the surface of the earth.
Which state was admitted as a free state in 1820
Weegy: Missouri was admitted as a free state in 1820.
3+7(2-5)+4
Weegy: 3 + (7 * (2 - 5)) + 4 = -14
8. The sun is directly overhead at the equator on what day of the ...
Weegy: The sun is directly overhead at the equator on Solstice day of the year. User: The Moon is made up mostly of ...
A compact fluorescent light bulb uses more energy than an ...
Weegy: A compact fluorescent light bulb uses more energy than an incandescent light bulb. FALSE.
Which of the following can be labeled as autotrophs? A. ...
Weegy: Primary producers can be labeled as autotrophs. User: Which of the following can be said about the use of ...
One varve equals one coarse summer layer and one fine winter layer. ...
Weegy: One varve equals one coarse summer layer and one fine winter layer. TRUE.
The __ Autocomplete list contains those functions that alphabetically ...
Weegy: The Formula AutoComplete list contains those functions that alphabetically match the letters you type following ...
S
R
L
Points 969 [Total 1069] Ratings 3 Comments 939 Invitations 0 Offline
S
L
P
C
P
C
Points 957 [Total 3758] Ratings 1 Comments 947 Invitations 0 Online
S
L
1
Points 720 [Total 1356] Ratings 20 Comments 500 Invitations 2 Offline
S
L
Points 396 [Total 573] Ratings 3 Comments 326 Invitations 4 Offline
S
L
Points 332 [Total 348] Ratings 0 Comments 312 Invitations 2 Offline
S
L
Points 242 [Total 1839] Ratings 2 Comments 222 Invitations 0 Offline
S
L
Points 200 [Total 363] Ratings 1 Comments 190 Invitations 0 Offline
S
L
Points 143 [Total 304] Ratings 10 Comments 13 Invitations 3 Offline
S
L
P
C
Points 128 [Total 1396] Ratings 2 Comments 108 Invitations 0 Offline
S
L
Points 115 [Total 440] Ratings 1 Comments 85 Invitations 2 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.