18x+27-42x-12=-81

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Solution for 18x+27-42x-12=-81 equation: 


Simplifying
18x + 27 + -42x + -12 = -81

Reorder the terms:
27 + -12 + 18x + -42x = -81

Combine like terms: 27 + -12 = 15
15 + 18x + -42x = -81

Combine like terms: 18x + -42x = -24x
15 + -24x = -81

Solving
15 + -24x = -81

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + -24x = -81 + -15

Combine like terms: 15 + -15 = 0
0 + -24x = -81 + -15
-24x = -81 + -15

Combine like terms: -81 + -15 = -96
-24x = -96

Divide each side by '-24'.
x = 4

Simplifying
x = 4

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