To find the GCF, find the number(s) that that have the highest multiple factor in common. The first numbers can all be divided by 7, there's 1 a in common, and 3 b's in common. Combine them since you have variables and numerical values to get 7ab3 .
i dont know if you cant find a way its best to actually add all of them start from 105 tho
b. would be the answer : )
step 1: add -16x to both sides.
step 2: divide both sides by -4.
−4y /-4 = -16x + 64/-4
hope i'm right