3x-5(-x-18)=42

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Solution for 3x-5(-x-18)=42 equation:


Simplifying
3x + -5(-1x + -18) = 42

Reorder the terms:
3x + -5(-18 + -1x) = 42
3x + (-18 * -5 + -1x * -5) = 42
3x + (90 + 5x) = 42

Reorder the terms:
90 + 3x + 5x = 42

Combine like terms: 3x + 5x = 8x
90 + 8x = 42

Solving
90 + 8x = 42

Solving for variable 'x'.

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

Add '-90' to each side of the equation.
90 + -90 + 8x = 42 + -90

Combine like terms: 90 + -90 = 0
0 + 8x = 42 + -90
8x = 42 + -90

Combine like terms: 42 + -90 = -48
8x = -48

Divide each side by '8'.
x = -6

Simplifying
x = -6

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