Question

encontre o valor de x
8x-40=16
x+4=12
-2x=15
4-2(1-3x)=20
4x-8=16

Answer 1

8x - 40 = 16
8x=16+40
8x=56
x=56/8
x=7

x+4=12
x=12-4
x=8

-2x=15
X (-1) -2x = 15 X (-1)
2x = -15
x=-15/2

Answer 2

x=7
x=8
x=-7,5
x=2,83
x=6