-7(y-9)=-8y

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Solution for -7(y-9)=-8y equation:


Simplifying
-7(y + -9) = -8y

Reorder the terms:
-7(-9 + y) = -8y
(-9 * -7 + y * -7) = -8y
(63 + -7y) = -8y

Solving
63 + -7y = -8y

Solving for variable 'y'.

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

Add '8y' to each side of the equation.
63 + -7y + 8y = -8y + 8y

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

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

Add '-63' to each side of the equation.
63 + -63 + 1y = 0 + -63

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

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

Divide each side by '1'.
y = -63

Simplifying
y = -63

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