Question

p) (x + 3) - X = 24 + x
a) (x + 5 ) -315-) = 5
1) 4 (x + 3) = 4
5) 6 (2x - 3) = 6
1) 5 (2x - 4) = 7 (x+1) - 3
4) 7 (x - 5) = 3 (x-1)
v) 3 (x - 2) = 2x - 4 ??​

Answer 1

Resposta:

p) (x + 3) - X = 24 + x

x +3 -x = 24 +x

x -x -x = 24 -3

-x = 21

x = -21

...

a) (x + 5 ) -315-) = 5

x +5 -315 = 5

x = 5 -5 +315

x = 315

...

1) 4 (x + 3) = 4

4x +12 = 4

4x = 4 -12

4x = -8

x = -8/4

x = -2

...

5) 6 (2x - 3) = 6

12x -18 = 36

12x = 36 - 18

12x = 18

x = 18/12

x = 3/2

...

1) 5 (2x - 4) = 7 (x+1) - 3

10x -20 = 7x +7 -3

10x -7x = +7 -3 +20

3x = 24

x = 24/3

x = 8

...

4) 7 (x - 5) = 3 (x-1)

7x -35 = 3x -3

7x -3x = -3 +35

4x = 32

x = 32/4

x = 8

...

v) 3 (x - 2) = 2x - 4

3x -6 = 2x -4

3x -2x = -4 +6

​x = 2

Explicação passo-a-passo: