9(x-9)=8(9-y)

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Solution for 9(x-9)=8(9-y) equation:


Simplifying
9(x + -9) = 8(9 + -1y)

Reorder the terms:
9(-9 + x) = 8(9 + -1y)
(-9 * 9 + x * 9) = 8(9 + -1y)
(-81 + 9x) = 8(9 + -1y)
-81 + 9x = (9 * 8 + -1y * 8)
-81 + 9x = (72 + -8y)

Solving
-81 + 9x = 72 + -8y

Solving for variable 'x'.

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

Add '81' to each side of the equation.
-81 + 81 + 9x = 72 + 81 + -8y

Combine like terms: -81 + 81 = 0
0 + 9x = 72 + 81 + -8y
9x = 72 + 81 + -8y

Combine like terms: 72 + 81 = 153
9x = 153 + -8y

Divide each side by '9'.
x = 17 + -0.8888888889y

Simplifying
x = 17 + -0.8888888889y

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