Question

Santiago simplified the expression shown below. He got an answer of –573 when he should have gotten an answer of 197. Where did Santiago go wrong?

Answer 1

in step 1

Answer 2

15 -6 = 9

Answer 3

step 3 & step step 4

Answer 4

Thank you hun

Answer 5

no problem

Answer 6

instead of opening the bracket (15-6)first, he added the number outside the bracket,by so doing he didnt follow d order of operations which states that he must open the bracket first