Question

Resolva as equações do 1º grau:

a) 12x-4=10x+6 b)5(x-1)=30

Answer 1

A) 12x-4x = 10x+6
12x-10x = 6+4
2x = 10
X = 10:2
X = 5

B) 5(x-1) = 30
5x-5 = 30
5x = 30+5
X = 35:5
X = 7