3x-2y=21

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Solution for 3x-2y=21 equation: 


Simplifying
3x + -2y = 21

Solving
3x + -2y = 21

Solving for variable 'x'.

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

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

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

Divide each side by '3'.
x = 7 + 0.6666666667y

Simplifying
x = 7 + 0.6666666667y

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