(5y-1)-(7y+1)=5y-1-7y

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Solution for (5y-1)-(7y+1)=5y-1-7y equation: 


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

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

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

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

Reorder the terms:
-1 + -1 + 5y + -7y = 5y + -1 + -7y

Combine like terms: -1 + -1 = -2
-2 + 5y + -7y = 5y + -1 + -7y

Combine like terms: 5y + -7y = -2y
-2 + -2y = 5y + -1 + -7y

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

Combine like terms: 5y + -7y = -2y
-2 + -2y = -1 + -2y

Add '2y' to each side of the equation.
-2 + -2y + 2y = -1 + -2y + 2y

Combine like terms: -2y + 2y = 0
-2 + 0 = -1 + -2y + 2y
-2 = -1 + -2y + 2y

Combine like terms: -2y + 2y = 0
-2 = -1 + 0
-2 = -1

Solving
-2 = -1

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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