Question

Equação de 1 grau

A) 7(x-5)=3(x+1)
B) 3 (x-2)=4(-x+3)
C) 2(x+1)-(x-1=0

Answer 1

A)
7x-35=3x+3
7x-3x=35+3
4x=38
x=38/4
x=9,5
B)
3x-6=-4x+12
3x+4x=6+12
12x=18
x=18/12
x=1,5
C)
2x+2-x+1=0
2x-x=-2-1
x=-3