Question

Resolva a equação a seguir:

a)x+x=10 (x+4)

b)3x-1-4x-1=0​

Answer 1

a) x + x = 10 (x+4)

2x = 10x + 40

2x - 10x = 40

-8x = 40

x = -40/8

x = -5

b) 3x - 1 - 4x - 1 = 0

-x - 2 = 0

-x = 2

x = -2