(16-y)-(12-y)=-4

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Solution for (16-y)-(12-y)=-4 equation:


Simplifying
(16 + -1y) + -1(12 + -1y) = -4

Remove parenthesis around (16 + -1y)
16 + -1y + -1(12 + -1y) = -4
16 + -1y + (12 * -1 + -1y * -1) = -4
16 + -1y + (-12 + 1y) = -4

Reorder the terms:
16 + -12 + -1y + 1y = -4

Combine like terms: 16 + -12 = 4
4 + -1y + 1y = -4

Combine like terms: -1y + 1y = 0
4 + 0 = -4
4 = -4

Solving
4 = -4

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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