3[5-(-5x-1)]=135x+42

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Solution for 3[5-(-5x-1)]=135x+42 equation:


Simplifying
3[5 + -1(-5x + -1)] = 135x + 42

Reorder the terms:
3[5 + -1(-1 + -5x)] = 135x + 42
3[5 + (-1 * -1 + -5x * -1)] = 135x + 42
3[5 + (1 + 5x)] = 135x + 42

Combine like terms: 5 + 1 = 6
3[6 + 5x] = 135x + 42
[6 * 3 + 5x * 3] = 135x + 42
[18 + 15x] = 135x + 42

Reorder the terms:
18 + 15x = 42 + 135x

Solving
18 + 15x = 42 + 135x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-135x' to each side of the equation.
18 + 15x + -135x = 42 + 135x + -135x

Combine like terms: 15x + -135x = -120x
18 + -120x = 42 + 135x + -135x

Combine like terms: 135x + -135x = 0
18 + -120x = 42 + 0
18 + -120x = 42

Add '-18' to each side of the equation.
18 + -18 + -120x = 42 + -18

Combine like terms: 18 + -18 = 0
0 + -120x = 42 + -18
-120x = 42 + -18

Combine like terms: 42 + -18 = 24
-120x = 24

Divide each side by '-120'.
x = -0.2

Simplifying
x = -0.2

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