-21+7y=9x

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Solution for -21+7y=9x equation: 


Simplifying
-21 + 7y = 9x

Solving
-21 + 7y = 9x

Solving for variable 'y'.

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

Add '21' to each side of the equation.
-21 + 21 + 7y = 21 + 9x

Combine like terms: -21 + 21 = 0
0 + 7y = 21 + 9x
7y = 21 + 9x

Divide each side by '7'.
y = 3 + 1.285714286x

Simplifying
y = 3 + 1.285714286x

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