Question

1)4x=12=-2x+12

2)x+2+x=x+4

3)3x-12=-3x+12

4)5x-20=-5x+30

5)10x-25=75

me ajudem com a conta por favor ​

Answer 1

Resposta:

Explicação passo-a-passo:

1)4x-12=-2x+12

4x + 2x = 12 + 12

6x = 24

x = 24/6

x = 4

2)x+2+x=x+4

x + x - x = 4 - 2

x = 2

3)3x-12=-3x+12

3x + 3x = 12 + 12

6x = 24

x = 24/6

x = 4

4)5x-20=-5x+30

5x + 5x = 30 + 20

10x = 50

x = 50/10

x = 5

5)10x-25=75

10x = 75 + 25

10x = 100

x = 100/10

x = 10