2y+9-2(y+1)=6

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Solution for 2y+9-2(y+1)=6 equation: 


Simplifying
2y + 9 + -2(y + 1) = 6

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

Reorder the terms:
9 + -2 + 2y + -2y = 6

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

Combine like terms: 2y + -2y = 0
7 + 0 = 6
7 = 6

Solving
7 = 6

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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