Question

mim ajudem a arma essas equaçoes ?a) 3x-4=2x+8 b)7x-2+4=10+5x c)6x=2x+16 d)16x-1=12x+3

Answer 1

A) 3x-4=2x+8
3x-2x=4+8
x=12

B)7x-2+4=10+5x
7x-5x=2-4+10
2x=-2+10
2x=8
x=8/2
x=4

C)6x=2x+16 
6x-2x=12
4x=12
x=12/4
x=3

D)16x-1=12x+3
16x-12x=1+3
4x=4
x=4/4
x=1