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Please help me. I'm checking my answers. Evaluate the expression: Given 4x – 12, evaluate when x = -7
4x – 12, when x = -7 is the same thing as 4(-7) - 12, which equals -40. Your answer is -40.
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Expert answered|vchutkan|Points 4850|
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Asked 3/22/2012 9:19:11 PM
Updated 2/21/2014 11:49:10 AM
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This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [2/21/2014 11:49:10 AM]
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Questions asked by the same visitor
Please help me with checking my answers. Simplify by using the Distributive Property: 4a + 5(b – 2)
Weegy: 4a + 5(b – 2) = 4a + 5b - 10 User: Please help me with checking my answers. Simplify by using the Distributive Property: 8(3a + 2b – 5c) Weegy: Solution : 8(3a + 2b – 5c) = 24a + 16b - 40c User: Please help me check my answers. Simplify by Combining Like Terms: 14xy^3 – 22xy^3 + 5xy^3 Weegy: Solution : 14xy^3 – 22xy^3 + 5xy^3 by combining like terms 14xy^3 – 22xy^3 + 5xy^3 = -3xy^3 User: Applying PEMDAS, simplify these expressions: 6 + 4(3^2) – 20 Weegy: Solution : Applying the PEMDAS 6 + 4(3^2) – 20 6 + 4(3^2) – 20 = 6 + 4 (9) - 20 ; = 6 + 36 - 20 = 42 - 20 = 22 User: Applying PEMDAS, simplify: -12 – 48 ÷ 6 x 3^2 + 10 Weegy: Solution : -12 – 48 ÷ 6 x 3^2 + 10 = -12 – 48 ÷ 6 x 9 + 10 = -12 – 8 x 3^2 + 10 = -12 – 8 x 9 + 10 = -12 – 72 + 10 = -12 – 62 = -74 User: Simplify the espressions with grouping symbols: 14 – [ 3 + (8 – 2)] Weegy: Solution : 14 – [ 3 + (8 – 2)] = 14 – [ 3 + 8 – 2] = 14 – 3 - 8 + 2 = 5 User: Evaluate the expression: Given 4x – 12, evaluate when x = -7 User: Given 3x^2 + 2x – y, evaluate when x = -3 and y = 9 (More)
Question
Expert Answered
Updated 7/16/2014 11:40:23 AM
2 Answers/Comments
4x – 12, x = -7

= 4(-7) - 12
= -28 - 12
= -40
Added 7/16/2014 11:39:09 AM
This answer has been confirmed as correct and helpful.
3x^2 + 2x – y, x = -3 and y = 9

3(-3)^2 + 2(-3) - 9
= 3(9) - 6 - 9
= 27 - 6 - 9
= 12
Added 7/16/2014 11:40:22 AM
This answer has been confirmed as correct and helpful.
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