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

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Solution for (y-9)-(y+1)= equation:


Simplifying
(y + -9) + -1(y + 1) = 0

Reorder the terms:
(-9 + y) + -1(y + 1) = 0

Remove parenthesis around (-9 + y)
-9 + y + -1(y + 1) = 0

Reorder the terms:
-9 + y + -1(1 + y) = 0
-9 + y + (1 * -1 + y * -1) = 0
-9 + y + (-1 + -1y) = 0

Reorder the terms:
-9 + -1 + y + -1y = 0

Combine like terms: -9 + -1 = -10
-10 + y + -1y = 0

Combine like terms: y + -1y = 0
-10 + 0 = 0
-10 = 0

Solving
-10 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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