3x+6=3x+21

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Solution for 3x+6=3x+21 equation:


Simplifying
3x + 6 = 3x + 21

Reorder the terms:
6 + 3x = 3x + 21

Reorder the terms:
6 + 3x = 21 + 3x

Add '-3x' to each side of the equation.
6 + 3x + -3x = 21 + 3x + -3x

Combine like terms: 3x + -3x = 0
6 + 0 = 21 + 3x + -3x
6 = 21 + 3x + -3x

Combine like terms: 3x + -3x = 0
6 = 21 + 0
6 = 21

Solving
6 = 21

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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