Question

como resolvo essa equaçao 5(x-4)=-4+9(x-1)

Answer 1

5(x-4)=-4+9(x-1)
5x-20=-4+9x-9
5x-9x=-4-9+20
-4x=7
x=-7/4

Answer 2

5.(x - 4) = - 4 + 9.(x - 1)
5x - 20 = - 4 + 9x - 9
5x - 20 = - 4 - 9 + 9x
5x - 20 = - 13 + 9x
- 20 + 13 = 9x - 5x
- 7 = 4x
4x = - 7
x = - 7/4