Question

RESOLVA:

a)-3x=12

b)4x-3=x-12

c)3-4(x-1)+1=2(3-2x)

d) x+ 3 - x = 1 = 2 (3-2x)
4 2

e) 3 x -7 = 2 x +3 - x - 1
3 6 2

Answer 1

Resposta:

a)x=12/-3

x=-4

b)4x-x=-12+3

3x=-9

x=-9/3

x=-3

c)3-4(x)+1=2(x)

3-4x+1=2x

-4x-2x=-3-3

-6x=-6

x=-6/-6

x=1

d)x+3-x=1=2(x)42

x+3-x=1=2x 42

x-2x-x=42-3+1

-2x=40

x=40/2

x=20

e)3x-2x+x=3+7-1362

2x=1352

x=1352/2

x=676

Explicação passo-a-passo: