David wanted to solve 3(x-7)=5. As a first step, he wrote 3x-21=15. What error did he make? Correct his error and then find the solution?

Answer 1

3(x-7)=5

3x - 21 = 5

3x = 21 + 5

x = 26/3

x = 8 2/3

Answer 2

Ok. so the error David make was putting 15 as the answerinstead of keep it as 5 correct?

Answer 3

Right.

Answer 4

Thank you Ms. Sue :))

Answer 5

You're welcome, Patchie. :-)