27x+54-42x+18=12

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Solution for 27x+54-42x+18=12 equation:


Simplifying
27x + 54 + -42x + 18 = 12

Reorder the terms:
54 + 18 + 27x + -42x = 12

Combine like terms: 54 + 18 = 72
72 + 27x + -42x = 12

Combine like terms: 27x + -42x = -15x
72 + -15x = 12

Solving
72 + -15x = 12

Solving for variable 'x'.

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

Add '-72' to each side of the equation.
72 + -72 + -15x = 12 + -72

Combine like terms: 72 + -72 = 0
0 + -15x = 12 + -72
-15x = 12 + -72

Combine like terms: 12 + -72 = -60
-15x = -60

Divide each side by '-15'.
x = 4

Simplifying
x = 4

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