Question

resolva as equações passo a passo:
b) 2x -5 = × + 1
c) 2x +3 = x + 4
d) 5x +7 = 4x + 10
e) 4x -10 = 2x +2
f) 4x -7 = 8x - 2
g) 2x +1 = 4x - 7
h) 9x +9 + 3x = 15​​

Answer 1

Resposta:

Explicação passo a passo:

b) 2x -5 = × + 1

2x - x = 1+5

X = 6

_____________

c) 2x +3 = x + 4

2x - x = 4-3

X = 1

________________

d) 5x +7 = 4x + 10

5x - 4x = 10-7

X = 3

________________

e) 4x -10 = 2x +2

4x - 2x = 2+10

2x = 12

X = 12/2

X = 6

______________

f) 4x -7 = 8x - 2

-7+2 = 8x - 4x

- 5 = 4x

4x = - 5

X = - 5/4

_______________

g) 2x +1 = 4x - 7

1+7= 4x - 2x

8 = 2x

2x = 8

X = 8/2

X = 4

______________

h) 9x +9 + 3x = 15​​

12x = 15-9

12x = 6 (:6)

2X = 1

X = 1/27

Answer 2

B) 2x - 5 = x + 1

2x - x = 5 + 1

x = 6

C) 2x + 3 = x + 4

2x - x = 4 - 3

x = 1

D) 5x + 7 = 4x + 10

5x - 4x = 10 - 7

x = 3

E) 4x - 10 = 2x + 2

4x - 2x = 2 + 10

2x = 12

x = 12/2

x = 6

F) 4x - 7 = 8x - 2

4x - 8x = - 2 + 7

-4x = 5

x = -5/4

G) 2x + 1 = 4x - 7

2x - 4x = - 7 - 1

-2x = -8

x = -8/-2

x = 4

H) 9x + 9 + 3x = 15

12x + 9 = 15

12x = 15 - 9

12x = 6

x = 12/6

x = 2

Espero ter ajudado ❤