For which equation is x = 5 a solution? A. x/5 = 5

B. 5x = 5

C. 5 + 0 = x

D. 5 + x = 15

c. 5+0=5

Step-by-step explanation:

Step-by-step explanation:

C. 5 + 0 = x

5 = x

x = 5

A. x/5 = 5

x = 5×5

= 25

B. 5x = 5

x = 5/5

= 1

D. 5 + x = 15

x + 5 = 15

x = 15 - 5

= 10

a is the correct

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15