21x-6y=90

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Solution for 21x-6y=90 equation: 


Simplifying
21x + -6y = 90

Solving
21x + -6y = 90

Solving for variable 'x'.

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

Add '6y' to each side of the equation.
21x + -6y + 6y = 90 + 6y

Combine like terms: -6y + 6y = 0
21x + 0 = 90 + 6y
21x = 90 + 6y

Divide each side by '21'.
x = 4.285714286 + 0.2857142857y

Simplifying
x = 4.285714286 + 0.2857142857y

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