(2y-9)-(6y-7)=-4y-16

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Solution for (2y-9)-(6y-7)=-4y-16 equation: 


Simplifying
(2y + -9) + -1(6y + -7) = -4y + -16

Reorder the terms:
(-9 + 2y) + -1(6y + -7) = -4y + -16

Remove parenthesis around (-9 + 2y)
-9 + 2y + -1(6y + -7) = -4y + -16

Reorder the terms:
-9 + 2y + -1(-7 + 6y) = -4y + -16
-9 + 2y + (-7 * -1 + 6y * -1) = -4y + -16
-9 + 2y + (7 + -6y) = -4y + -16

Reorder the terms:
-9 + 7 + 2y + -6y = -4y + -16

Combine like terms: -9 + 7 = -2
-2 + 2y + -6y = -4y + -16

Combine like terms: 2y + -6y = -4y
-2 + -4y = -4y + -16

Reorder the terms:
-2 + -4y = -16 + -4y

Add '4y' to each side of the equation.
-2 + -4y + 4y = -16 + -4y + 4y

Combine like terms: -4y + 4y = 0
-2 + 0 = -16 + -4y + 4y
-2 = -16 + -4y + 4y

Combine like terms: -4y + 4y = 0
-2 = -16 + 0
-2 = -16

Solving
-2 = -16

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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