Question

resolva as equaçoes:
a) 2a - 12 = 3a +6
b) 5b +6 = 34 -2b
c) 8 + 2 . (x - 5) = 3 . (2x + 8)
d) -4y + 6 = 19 + 6y

pfv 8hrs pra entregar isso

Answer 1

Explicação passo-a-passo:

a) 2a - 12 = 3a + 6

2a - 3a = +6 + 12

-a = 18

a = -18

b) 5b + 6 = 34 -2b

5b + 2b = 34 - 6

7b = 28

b=28/7

b= 4

c) 8 + 2.(X- 5) = 3.(2x + 8)

8 + 2x - 10 = 6x + 8

8 - 10 - 8 = 6x - 2x

- 10 = 4x

x = -10/4²

x = 5/2

d) -4y + 6 = 19 + 6y

6 - 19 = 6y + 4y

- 13 = 10y

y = -13/10