Question

Resolva as equações
A)4(2x-3) = 8 (2x+5)

B)(4x-5)=5(2x-5)

C)8(6x+2)=5(x-2)

D)2(3x-4)=7(11-2x)

E)7(5-x)=4(x-11).

Answer 1

Resposta:

A) 8x - 12 = 16x + 40

8x - 16x = 40 + 12

- 8x = 52

- x = 52/8

x = - 13/2

B) 4x - 5 = 10x - 25

4x - 10x = - 25 + 5

- 6x = - 20

x = - 20/ - 6

x = 20/6

x = 10/3

C) 48 x + 16 = 5x - 10

48x - 5x = - 10 - 16

43x = - 26

x = 26/43

D) 6x - 8 = 77 - 14x

6x + 14x = 77 + 8

20x = 85

x = 85/20

x =