Question

a)5X-2=18+3X

b)2X-2=-3X+7+6

c)-X-2X-4=11
d)X-2X+5X=36

Answer 1

Resposta:

a) 10

b) 3

c) -5

d) 9

Explicação passo-a-passo:

a)5x -2 = 18 + 3x

5x - 3x = 18 + 2

2x = 20

x = 20/2

x = 10

b)2x -2 = -3x +7 +6

2x + 3x = 7 +6 +2

5x = 15

x = 15/5

x = 3

c) -x - 2x -4 = 11

-x -2x = 11 + 4

-3x = 15 ( x -1)

3x = -15

x = -15/3

x = -5

d) x - 2x + 5x = 36

4x = 36

x = 36/4

x = 9