-9x-21=y

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Solution for -9x-21=y equation: 


Simplifying
-9x + -21 = y

Reorder the terms:
-21 + -9x = y

Solving
-21 + -9x = y

Solving for variable 'x'.

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

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

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

Divide each side by '-9'.
x = -2.333333333 + -0.1111111111y

Simplifying
x = -2.333333333 + -0.1111111111y

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