4x-3x=21

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Solution for 4x-3x=21 equation: 


Simplifying
4x + -3x = 21

Combine like terms: 4x + -3x = 1x
1x = 21

Solving
1x = 21

Solving for variable 'x'.

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

Divide each side by '1'.
x = 21

Simplifying
x = 21

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