Question

pfv me ajudem e pra agora ​

Answer 1

Explicação passo-a-passo:

a) 5x - 3= 7 +2x

5x - 3 = 2x + 7

5x - 2x = 7 + 3

3x = 10

x = 10

3

x = 10/3

b) 12x-3-4x = 5-3x +8

8x - 3 = -3x + 13

8x + 3x = 13 + 3

11x = 16

x = 16

11

c)5.(x-5)-2x = 2.(4-x)

5x - 25 - 2x = 8 - 2x

3x -25 = -2x + 8

3x + 2x = 8 + 25

5x = 33

x = 33/5

d) 3x-2.(2-3x) = 5-10x

3x - 4 + 6x = -10x + 5

10x - 4 = -10x + 5

10x + 10x = 5 + 4

20x = 9

x = 9/20

e) x2-5 = 46-x

2x - 5 = -x + 46

2x + x = 46 + 5

3x = 51

x = 51/3

x = 17

f)x+25 = 12 +x10

x + 25 = 10x + 12

x - 10x = 12 - 25

-9x = -13

x = 13/9