Solve the equation 4(x-b)=x

a.b=4/3 x
b. b=3/4 x
c. x 4/3 b
d. x= 3/4 b

2 answers

4x-4b=x
-x -x
3x-4b=0
+4b +4b
3x=4b
x=4b/3
b=3x/4
so is it b