3x+21=2x+21

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Solution for 3x+21=2x+21 equation:


Simplifying
3x + 21 = 2x + 21

Reorder the terms:
21 + 3x = 2x + 21

Reorder the terms:
21 + 3x = 21 + 2x

Add '-21' to each side of the equation.
21 + -21 + 3x = 21 + -21 + 2x

Combine like terms: 21 + -21 = 0
0 + 3x = 21 + -21 + 2x
3x = 21 + -21 + 2x

Combine like terms: 21 + -21 = 0
3x = 0 + 2x
3x = 2x

Solving
3x = 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
3x + -2x = 2x + -2x

Combine like terms: 3x + -2x = 1x
1x = 2x + -2x

Combine like terms: 2x + -2x = 0
1x = 0

Divide each side by '1'.
x = 0

Simplifying
x = 0

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