Question

resolva as equações:
A) 4x-6=22

B)9-x=2x

C)8+4x =6x-4

D)3x + 1 = x+9

E) 4x- 11=7-2x

F) 13x+1-10x=5+x

Answer 1

Explicação passo-a-passo:

1) 4x -6 = 22

4x = 22+6

4x = 28

28 ÷ 4 = 7

2) 9 - x = 2x

-x - 2x = -9

-3x = -9

-9 ÷ -3 = 3

3) 8+4x = 6x -4

4x - 6x = -4 -8

-2x = - 12

-12 ÷ -2 = 6

4) 3x +1 = x + 9

3x - x = 9 - 1

2x = 8

8 ÷ 2 = 4

5) 4x - 11= 7 - 2x

4x + 2x = 7 + 11

6x = 18

18 ÷ 6 = 3

6) 13x + 1 - 10x = 5 + x

13x - 10x - x = 5 - 1

2x = 4

4 ÷ 2 = 2

Answer 2

Resposta:

A-)

4x-6=22

4x=22+6

x=28

x=28/4

x=7

B-)

9-x=2x

9=2x +x

9=x3

x= 9/3

x=3

C-)

8+4x= 6x-4

8+4= 6x-4x

12= 2x

2x=12

x=12/2

x=6

D-)

3x +1=x+9

3x-x=9-1

2x=8

x= 8/2

x=4

E-)

4x-11=7-2x

4x+2x=+11+7

6x=+18

x=+18/6

x=3

F-)

13x+1-10x=5+x

13x+10x-x=5-1

2x=4

x=4/2

x=2