9-x+y=20y

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Solution for 9-x+y=20y equation:


Simplifying
9 + -1x + y = 20y

Solving
9 + -1x + y = 20y

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -1x + -9 + y = -9 + 20y

Reorder the terms:
9 + -9 + -1x + y = -9 + 20y

Combine like terms: 9 + -9 = 0
0 + -1x + y = -9 + 20y
-1x + y = -9 + 20y

Add '-1y' to each side of the equation.
-1x + y + -1y = -9 + 20y + -1y

Combine like terms: y + -1y = 0
-1x + 0 = -9 + 20y + -1y
-1x = -9 + 20y + -1y

Combine like terms: 20y + -1y = 19y
-1x = -9 + 19y

Divide each side by '-1'.
x = 9 + -19y

Simplifying
x = 9 + -19y

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