-2y+9=-(2y-9)

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Solution for -2y+9=-(2y-9) equation:


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

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

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

Add '-9' to each side of the equation.
9 + -9 + -2y = 9 + -9 + -2y

Combine like terms: 9 + -9 = 0
0 + -2y = 9 + -9 + -2y
-2y = 9 + -9 + -2y

Combine like terms: 9 + -9 = 0
-2y = 0 + -2y
-2y = -2y

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

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

Combine like terms: -2y + 2y = 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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