Question

A)6x-10=-4x+50
B)-20+3x=2x-60
C)-100+5x=-5x+20
D)3x-8x=200
E) 70+3x=-2x
Alguém me ajuda pfv!​

Answer 1

Resposta:

a)

$6x - 10 = 4x + 50 \\ 6x \times 4x = 50 + 10 \\ 10x = 60 \\ x = 6$

b)

$- 20 + 3x = 2x - 60 \\ 3x - 2x = - 60 + 20 \\ x = - 40$

c)

$- 100 + 5x = - 5x + 20 \\ 5x + 5x = 20 + 100 \\ 10x = 120 \\ x = 12$

d)

$3x - 8x = 200 \\ - 5x = 200 \\ x = 40$

e)

$70 + 3x = - 2x \\ 3x + 2x = - 70 \\ 5x = - 70 \\ x = - 14$