Question

resolve pfv essas equaçoes​

Answer 1

Olá!

a) 6x+4x-3x=14.12
7x=168
x=168/7
x=24

b)4x+2x+3x=18.4
9x=72
x=8

c)3x+2x=2(7+2x)
5x=14+4x
1x=14
x=14

d)3(3x-2)-6(4-x)=2x.12-4(7x-2)
9x-6-24+6x=24x-28x+8
15x-30=-4x+8
19x=38
x=2

Espero ter ajudado!