10. Evaluate the expression below for x

15.

5 (X+7)

Well you have to combine 5 and X then 5 and 7 so it would come out to 5X+35. Then, you have to get the X by itself. You do this by making the problem like so 5X+35=0. Then, you bring the + 35 to the other side of the = making the problem 5X = - 35. Now, you divide both sides by 5 making the problem X = - 7. So, the answer for X is - 7

5 (x+7)

5•x=5x

5•7=35

5x=35

Divide 5x by both sides

X=7