Question

Resolva as equações abaixo: A)5X+2X-8=3X+2X+20 ,B) 5X-8-2=3X+20-2.

Answer 1

a) 5x + 2x -8 = 3x +2x +20
5x +2x -3x -2x - 8 -20
2x -28 =0
2x = 28
x= 28/2
x= 14

b) 5x -8 -2 = 3x +20 -2
5x -3x -8 -2 -20 +2 =0
2x -28 =0
2x = 28
x = 28/2
x = 14



espero ter ajudado bjs sz