6x-4y=21-y

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Solution for 6x-4y=21-y equation: 


Simplifying
6x + -4y = 21 + -1y

Solving
6x + -4y = 21 + -1y

Solving for variable 'x'.

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

Add '4y' to each side of the equation.
6x + -4y + 4y = 21 + -1y + 4y

Combine like terms: -4y + 4y = 0
6x + 0 = 21 + -1y + 4y
6x = 21 + -1y + 4y

Combine like terms: -1y + 4y = 3y
6x = 21 + 3y

Divide each side by '6'.
x = 3.5 + 0.5y

Simplifying
x = 3.5 + 0.5y

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