Question

Resolva as Equações

A) 5 (3x - 2 ) = 2 (6x + 3)

B) 5x - (x - 2) = 2 - 3 (x + 5)

C) 3 ( x + 2 ) +5 = x + 12

Answer 1

A) 15x-10=12x+6
15x-12x=6+10
3x=16
x=16/3

B) 5x-x+2=2-3x-15
5x-x+3x=2-2-15
7x=-15
x=-15/7

C) 3x+6+5=x+12
3x-x=12-6-5
2x=1
x=1/2