(2y-9)-(7y-7)=-5y-2

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Solution for (2y-9)-(7y-7)=-5y-2 equation: 


Simplifying
(2y + -9) + -1(7y + -7) = -5y + -2

Reorder the terms:
(-9 + 2y) + -1(7y + -7) = -5y + -2

Remove parenthesis around (-9 + 2y)
-9 + 2y + -1(7y + -7) = -5y + -2

Reorder the terms:
-9 + 2y + -1(-7 + 7y) = -5y + -2
-9 + 2y + (-7 * -1 + 7y * -1) = -5y + -2
-9 + 2y + (7 + -7y) = -5y + -2

Reorder the terms:
-9 + 7 + 2y + -7y = -5y + -2

Combine like terms: -9 + 7 = -2
-2 + 2y + -7y = -5y + -2

Combine like terms: 2y + -7y = -5y
-2 + -5y = -5y + -2

Reorder the terms:
-2 + -5y = -2 + -5y

Add '2' to each side of the equation.
-2 + 2 + -5y = -2 + 2 + -5y

Combine like terms: -2 + 2 = 0
0 + -5y = -2 + 2 + -5y
-5y = -2 + 2 + -5y

Combine like terms: -2 + 2 = 0
-5y = 0 + -5y
-5y = -5y

Add '5y' to each side of the equation.
-5y + 5y = -5y + 5y

Combine like terms: -5y + 5y = 0
0 = -5y + 5y

Combine like terms: -5y + 5y = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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