Question

b) 12+x=2x+2

C) 6x=2x+16

d) 45-2x+5=4X-15-25

e) -10-x=-3x-+5

Answer 1

Resposta:

B)

$x - 2x = 2 - 12 \\ - x = - 10$

C)

$6x - 2x = 16 \\ 4x = 16 \\ x = \frac{16}{4} \\ x = 4$

D)

$- 2x - 4x = - 15 - 25 - 45 - 5 \\ - 6x = - 90 \\ x = \frac{ - 90}{ - 6} \\ x = 15$

E)

$- x + 3x = - 5 + 10 \\ 2x = 5 \\ x = \frac{5}{2} \\ x = 2.5$