Question

(5-3x)-(-4x+6)=(8x+11)-(3x-6)



30x-(-x+6)+(-5x+4)=-(5x+6)+(-8+3x)

Answer 1

Hola Saratlou94, 

(5 - 3x) - (- 4x + 6) = (8x + 11) - (3x - 6)
5 - 3x + 4x - 6 = 8x + 11 - 3x + 6
x - 1 = 5x + 17
- 1  - 17 = 5x - x
- 18 = 4x
- 18 / 4 = x
- 9 / 2 = x

S = {- 9 / 2}

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30x - (- x + 6) + (- 5x + 4) = - (5x + 6) + (- 8 + 3x)
30x + x - 6 - 5x + 4 = - 5x - 6 - 8 + 3x
26x - 2 = - 2x - 14
26x + 2x = - 14 + 2
28x = - 12
x = - 12 / 28
x = - 3 / 7

S = {- 3 / 7}