21x-7x=28

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Solution for 21x-7x=28 equation: 


Simplifying
21x + -7x = 28

Combine like terms: 21x + -7x = 14x
14x = 28

Solving
14x = 28

Solving for variable 'x'.

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

Divide each side by '14'.
x = 2

Simplifying
x = 2

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