(5x-12)-(3x+18)=

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Solution for (5x-12)-(3x+18)= equation:


Simplifying
(5x + -12) + -1(3x + 18) = 0

Reorder the terms:
(-12 + 5x) + -1(3x + 18) = 0

Remove parenthesis around (-12 + 5x)
-12 + 5x + -1(3x + 18) = 0

Reorder the terms:
-12 + 5x + -1(18 + 3x) = 0
-12 + 5x + (18 * -1 + 3x * -1) = 0
-12 + 5x + (-18 + -3x) = 0

Reorder the terms:
-12 + -18 + 5x + -3x = 0

Combine like terms: -12 + -18 = -30
-30 + 5x + -3x = 0

Combine like terms: 5x + -3x = 2x
-30 + 2x = 0

Solving
-30 + 2x = 0

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + 2x = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 2x = 0 + 30
2x = 0 + 30

Combine like terms: 0 + 30 = 30
2x = 30

Divide each side by '2'.
x = 15

Simplifying
x = 15

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