12x+42=20x+18

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Solution for 12x+42=20x+18 equation:


Simplifying
12x + 42 = 20x + 18

Reorder the terms:
42 + 12x = 20x + 18

Reorder the terms:
42 + 12x = 18 + 20x

Solving
42 + 12x = 18 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
42 + 12x + -20x = 18 + 20x + -20x

Combine like terms: 12x + -20x = -8x
42 + -8x = 18 + 20x + -20x

Combine like terms: 20x + -20x = 0
42 + -8x = 18 + 0
42 + -8x = 18

Add '-42' to each side of the equation.
42 + -42 + -8x = 18 + -42

Combine like terms: 42 + -42 = 0
0 + -8x = 18 + -42
-8x = 18 + -42

Combine like terms: 18 + -42 = -24
-8x = -24

Divide each side by '-8'.
x = 3

Simplifying
x = 3

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