Marcel made an error when he used the distributive property to solve the problem shown. Which sentence describes the error? In Step 2, 90 should be multiplied by the quantity 10 – 12, not by 10. 10 was substituted for x at the wrong step. In Step 1, the expression should be x(90 – 12) not 90(x– 12). There should be no parentheses in Step 1. It should be 90 • x – 12.

i think the answer is b.

step-by-step explanation:

not 100% sure though.

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

-1   1/6.   you dont subtract the denominators

step-by-step explanation:

this is a good question! i’ll do some research and what i find, i’ll contact you asap when i have something! ✊