Question

resolva as equações do primeiro grau.

3.x= 42
x+11=32
2.x-27=13
5.x+24= -41

Answer 1

3x =42
x=42/3
x= 14

x+11=32
x=32-11
x= 21

2x-27=13
2x=13+27
2x=40
x=40/2
x=20

5x+24=-41
5x=-41-24
5x= -65
x= -65/5
x= -13