Question

resolva as equacoes

20x-4=5x

7x=14

4x+8x=36

3x+x=32

10x=100

-6x+10=2x+90+

7x-3=x+5-2x

x-7=20

8x+2=4x+22

5/x=10/2​

Answer 1

Resposta:

20x-5x=4

15x=4

x=4/15

7x=14

x=14/7

x=2

4x+8x=36

12x=36

x=36/12

x=3

3x+x=32

4x=32

x=32/4

x=8

Explicação passo-a-passo:

10x=100

x=100/10

x=10

-6x+10=2x+90

-6x-2x=-10+90

-8x=80

8x=-80

x=-80/8

x=-10

7x-3=x+5-2x

7x-x+2x=+3+5

8x=8

x=1

x-7=20

x=20+7

x=27

8x+2=4x+22

8x-4x=22-2

4x=20

x=5

5/x=10/2

10x=10

x=1