Question

a solucao da equacao 0,3 x + 6 = 0,5 x +2 é

A)2
B)-2
C)20
D)-20

Answer 1

0,5x-0,3x=6-2
0,2x=4
x=4/0,2
x=40/2 = 20

c)20

Answer 2

0.3 + 6 = 0.5 + 2
0.3x - 0.5x + 6 = 2
-0.2x = 2 - 6
0.2x = 4
x = 4/0.2
x = 20
C)