Question

exercicios de matematica

regra nao pode ser só a resposta tem que de a conta inteira

x+2=10
x+5=20
x+7=18
x-2=20
x-3=15
x-8=12
x+2=-10
x+5=-25
x+7=-20
x-2=-30
x-3=-20
x-8=-15
3x +2=2x
4x+5=3x
5x+10=4x
10x+20=9x
8x+10=7x
-8x+10=-7
4x+4=3x3x
5x-5=-4x
5x-10=-4x
-15x+3=14x-2
2x+2=10
x+1=-x
x+10=-x+5
2x+10=-x+20
3x-5=-10
2x-10=x-5
4x-15=2x+10
6x-20=4x-25

Answer 1

x+2=10
x=10-2
x=8

x+5=20
x=20-5
x=15

x+7=18
x=18-7
x=11

x-2=20
x=20+2
x=22

x-3=15
x=15+3
x=18

x-8=12
x=12+8
x=20

x+2=-10
x=-10-2
x=-12

x+5=-25
x=-25-5
x=-30

x+7=-20
x=-20-7
x=-27

x-2=-30
x=-30+2
x=-28

x-3=-20
x=-20+3
x=-17

x-8=-15
x=-15+8
x=-7

x=