Question

Resolva as equações do 1° grau
A) 3×+2 (×-1) 54×+2
B) 3 (2×+10)=2(2×-1)

Answer 1

A) 3x+2(x-1)54x+2
3x+2x-2.54x+2
3x+2x-108x+2
5x-108x+2
103x+2
103x= -2
X= -2/-103

B) 3(2x+10)=2(2x-1)
6x+30=4x-4
6x-4x=-4-30
2x=-34
X=-34/-2
X=17