Question

letra a: 5x + 4 -2x = 26 - 4x

letra b: -10 + 4- 2x = -4x +20

letra c: 5. (3x - 2) = 2. (6x + 3)

letra d: 2. (x - 2) + 5. (2 - x) = 0

letra e: 2. (3x - 1) + 2. (3 - x) = 0

heeeelp

Answer 1

Letra a : 5x + 4 -2x = 26 - 4x
3x = 26 - 4 - 4x
4x + 3x = 22
7x = 22
x = 22/7 = 3,1428 ou somente 22/7

Letra b : -10 + 4 - 2x = -4x +20
-6 - 2x = -4x + 20
4x - 2x = 20 + 6 
2x = 26
x = 26/2 = 13

Letra c : 5.(3x-2) = 2.(6x+3)
15x - 10 = 12x + 6
15x - 12x = 6 + 10
3x = 16
x = 16/3 = 5,33... ou somente 16/3

Letra d : 2.(2-2) + 5.(2-x) = 0
4 - 4 + 10 - 5x = 0
10 = 5x
10/5 = x = 2

Letra e : 2.(3x-1) + 2.(3-x) = 0
6x - 2 + 6 - 2x = 0
4x + 4 = 0
4x = - 4
x = - 4/4
x = -1