10x-3x=21

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Solution for 10x-3x=21 equation: 


Simplifying
10x + -3x = 21

Combine like terms: 10x + -3x = 7x
7x = 21

Solving
7x = 21

Solving for variable 'x'.

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

Divide each side by '7'.
x = 3

Simplifying
x = 3

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