12x=5x+21

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Solution for 12x=5x+21 equation:


Simplifying
12x = 5x + 21

Reorder the terms:
12x = 21 + 5x

Solving
12x = 21 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
12x + -5x = 21 + 5x + -5x

Combine like terms: 12x + -5x = 7x
7x = 21 + 5x + -5x

Combine like terms: 5x + -5x = 0
7x = 21 + 0
7x = 21

Divide each side by '7'.
x = 3

Simplifying
x = 3

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