Question

Quanto e?
A) 16x -1 =12x +3
B) 4x -7 = 2x +1
C) 5x -3+ x = 2x +9
OBS. preciso das contas COMPLETAS

Answer 1

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

Answer 2

a) 16x-12x=3+1
4x=4
x= 4/4
x=1
b) 4x-2x=1+7
2x=8
x=8/2
x=4
c) 5x-2x=9+3
3x=12
x=12/3
x=4
pronto!