Question

Solve the equation 15x + 8 = y + 13 for x if y is 40. Make sure to first solve the equation for x in terms of y.

X=______

Answer 1

x=3

Explanation:

15x+8=(40)+13

15x+8=53

subtract 8 from both sides to isolate the variable.

15x=45

divide both sides by 15

x=3

Answer 2

3

Explanation:

15x +8 =40 +13

15x + 8=53

15x=45

3