7(y-9)=9-y

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Solution for 7(y-9)=9-y equation:


Simplifying
7(y + -9) = 9 + -1y

Reorder the terms:
7(-9 + y) = 9 + -1y
(-9 * 7 + y * 7) = 9 + -1y
(-63 + 7y) = 9 + -1y

Solving
-63 + 7y = 9 + -1y

Solving for variable 'y'.

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

Add 'y' to each side of the equation.
-63 + 7y + y = 9 + -1y + y

Combine like terms: 7y + y = 8y
-63 + 8y = 9 + -1y + y

Combine like terms: -1y + y = 0
-63 + 8y = 9 + 0
-63 + 8y = 9

Add '63' to each side of the equation.
-63 + 63 + 8y = 9 + 63

Combine like terms: -63 + 63 = 0
0 + 8y = 9 + 63
8y = 9 + 63

Combine like terms: 9 + 63 = 72
8y = 72

Divide each side by '8'.
y = 9

Simplifying
y = 9

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