Asked by Patchie

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?
Answered by Ms. Sue
3(x-7)=5

3x - 21 = 5

3x = 21 + 5

x = 26/3

x = 8 2/3

Answered by Anonymous
Ok. so the error David make was putting 15 as the answerinstead of keep it as 5 correct?
Answered by Ms. Sue
Right.
Answered by Patchie
Thank you Ms. Sue :))
Answered by Ms. Sue
You're welcome, Patchie. :-)