4x-12=30-x

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Solution for 4x-12=30-x equation:


Simplifying
4x + -12 = 30 + -1x

Reorder the terms:
-12 + 4x = 30 + -1x

Solving
-12 + 4x = 30 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-12 + 4x + x = 30 + -1x + x

Combine like terms: 4x + x = 5x
-12 + 5x = 30 + -1x + x

Combine like terms: -1x + x = 0
-12 + 5x = 30 + 0
-12 + 5x = 30

Add '12' to each side of the equation.
-12 + 12 + 5x = 30 + 12

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

Combine like terms: 30 + 12 = 42
5x = 42

Divide each side by '5'.
x = 8.4

Simplifying
x = 8.4

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