Respuesta :

Answer:

(r-4g)/2 =x

Step-by-step explanation:

4g+r=2r-2x

To solve for x, subtract 2r from each side

4g+r-2r=2r-2r-2x

4g -r = -2x

Divide by -2  to isolate x

(4g-r) /-2  = -2x/-2

(4g-r) /-2 = x

I will distribute the - inside the parentheses

(-4g +r)/2 = x

And change the order in side the parentheses

(r-4g)/2 =x