What is the solution to the equation 7(a – 10) = 13 – 2(2a + 3)?
Question
Updated 6/27/2014 11:46:31 PM
Flagged by andrewpallarca [6/27/2014 11:46:31 PM]
Original conversation
User: What is the solution to the equation 7(a – 10) = 13 – 2(2a + 3)?

User: Sandra makes and sells bracelets. It costs her \$2 to make each bracelet, plus a one-time cost of \$15 for supplies. She plans to sell each bracelet for \$5. Let x represent the number of bracelets. Which equation can be used to find the number of bracelets she needs to sell to break even?

Question
Updated 6/27/2014 11:46:31 PM
Flagged by andrewpallarca [6/27/2014 11:46:31 PM]
Rating
3
7(a – 10) = 13 – 2(2a + 3);

7a - 70 = -4a + 7

7a + 4a = 7 + 70;

11a = 77;

a = 77/11;

a = 7

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