Question

8x + 5y = 48 to find x if y = -8

Answer 1

x = 11

Explanation:

8x + 5y = 48

8x + 5(-8) = 48 ==> plugin y = -8

8x + (-40) = 48 ==> simplify

8x - 40 = 48

8x = 88 ==> add 40 on both sides to simplify x

x = 11 ==> divide both sides by 8 to isolate x

Answer 2

`8x + 5y = 48 \\ put \: y = - 8 \\ 8x + 5 * - 8 = 48 \\ 8x + ( - 40) = 48 \\ 8x - 40 = 48 \\ 8x = 48 + 40 \\ 8x = 88 \\ x = (88)/(8) \\ x = 11 \: anwer \:`

Hope it will help you...