3(x+18)-4(x-18)=5x

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Solution for 3(x+18)-4(x-18)=5x equation:


Simplifying
3(x + 18) + -4(x + -18) = 5x

Reorder the terms:
3(18 + x) + -4(x + -18) = 5x
(18 * 3 + x * 3) + -4(x + -18) = 5x
(54 + 3x) + -4(x + -18) = 5x

Reorder the terms:
54 + 3x + -4(-18 + x) = 5x
54 + 3x + (-18 * -4 + x * -4) = 5x
54 + 3x + (72 + -4x) = 5x

Reorder the terms:
54 + 72 + 3x + -4x = 5x

Combine like terms: 54 + 72 = 126
126 + 3x + -4x = 5x

Combine like terms: 3x + -4x = -1x
126 + -1x = 5x

Solving
126 + -1x = 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
126 + -1x + -5x = 5x + -5x

Combine like terms: -1x + -5x = -6x
126 + -6x = 5x + -5x

Combine like terms: 5x + -5x = 0
126 + -6x = 0

Add '-126' to each side of the equation.
126 + -126 + -6x = 0 + -126

Combine like terms: 126 + -126 = 0
0 + -6x = 0 + -126
-6x = 0 + -126

Combine like terms: 0 + -126 = -126
-6x = -126

Divide each side by '-6'.
x = 21

Simplifying
x = 21

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