Question

a) 4X + 4 = 2X + 26
b) 5X – 3 = 7
c) 10X – 40 = – 2X + 20
d) 8X – 2 = – 4X + 70

Answer 1

Explicação passo a passo:

a) 4x - 2x = 26 - 4

     2x = 22

     x = 22/2

       x = 11

b) 5x = 7 + 3

     5x = 10

     x = 10/5

       x = 2

c) 10x + 2x = 20 + 40

        12x = 60

        x = 60/12

           x = 5

d) 8x + 4x = 70 + 2

        12x = 72

        x = 72/12

           x = 6