9x-42=3x

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Solution for 9x-42=3x equation:


Simplifying
9x + -42 = 3x

Reorder the terms:
-42 + 9x = 3x

Solving
-42 + 9x = 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-42 + 9x + -3x = 3x + -3x

Combine like terms: 9x + -3x = 6x
-42 + 6x = 3x + -3x

Combine like terms: 3x + -3x = 0
-42 + 6x = 0

Add '42' to each side of the equation.
-42 + 42 + 6x = 0 + 42

Combine like terms: -42 + 42 = 0
0 + 6x = 0 + 42
6x = 0 + 42

Combine like terms: 0 + 42 = 42
6x = 42

Divide each side by '6'.
x = 7

Simplifying
x = 7

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