Andrew solved the following inequality and his work is shown below:

−4(x + 8) + 25 ≤ −2 + 1(x − 50)
−4x − 32 + 25 ≤ −2 + 1x − 50
−4x − 7 ≤ 1x − 52
−5x ≤ −45
x ≤9

What mistake did Andrew make in solving the inequality?

He subtracted 1x from both sides when he should have added 4x.

When dividing by −5, he did not change the ≤ to ≥.

He added 7 to both sides when he should have added 52.

He did not make a mistake.

Question

Andrew solved the following inequality and his work is shown below:

−4(x + 8) + 25 ≤ −2 + 1(x − 50)
−4x − 32 + 25 ≤ −2 + 1x − 50
−4x − 7 ≤ 1x − 52
−5x ≤ −45
x ≤9

What mistake did Andrew make in solving the inequality?

 He subtracted 1x from both sides when he should have added 4x.

 When dividing by −5, he did not change the ≤ to ≥.

 He added 7 to both sides when he should have added 52.

 He did not make a mistake.

ivettef365 · Answer

what do you think is the answer ?

anonymous · Answer

the third one but i'm not 100% sure.

ivettef365 · Answer

that is correct the sign was not changed

anonymous · Answer

ahh okay thank you. :)

ivettef365 · Answer

yw :)