Question

ajudem a resolver as equações

Answer 1

1)2x-10=20
2x=20+10
2x=30
 x=30:2 
 x=15

2)3x-15=48
3x=48+15
3x=63
 x=63:3
 x=21

3)4x+16=40
4x=40-16
4x=24
 x=24:4
 x=6

4)5x-55=70
5x=70+55
5x=125
 x=125:5
 x=25

5)6x-36=72
6x=72+36
6x=108
 x=108:6
 x=18

6)7x-14=84
7x=84+14
7x=98
 x=98:7
 x=14

7)8x+24=32
8x=32-24
8x=8
 x=8:8
 x=1

8)9x-54=63
9x=63+54
9x=117
 x=117:9
 x=3

**Espero ter ajudado'