3x+42=18x+12

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Solution for 3x+42=18x+12 equation:


Simplifying
3x + 42 = 18x + 12

Reorder the terms:
42 + 3x = 18x + 12

Reorder the terms:
42 + 3x = 12 + 18x

Solving
42 + 3x = 12 + 18x

Solving for variable 'x'.

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

Add '-18x' to each side of the equation.
42 + 3x + -18x = 12 + 18x + -18x

Combine like terms: 3x + -18x = -15x
42 + -15x = 12 + 18x + -18x

Combine like terms: 18x + -18x = 0
42 + -15x = 12 + 0
42 + -15x = 12

Add '-42' to each side of the equation.
42 + -42 + -15x = 12 + -42

Combine like terms: 42 + -42 = 0
0 + -15x = 12 + -42
-15x = 12 + -42

Combine like terms: 12 + -42 = -30
-15x = -30

Divide each side by '-15'.
x = 2

Simplifying
x = 2

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