(y+9)2*2-(y+5)2*2=28

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Solution for (y+9)2*2-(y+5)2*2=28 equation: 


Simplifying
(y + 9) * 2 * 2 + -1(y + 5) * 2 * 2 = 28

Reorder the terms:
(9 + y) * 2 * 2 + -1(y + 5) * 2 * 2 = 28

Reorder the terms for easier multiplication:
2 * 2(9 + y) + -1(y + 5) * 2 * 2 = 28

Multiply 2 * 2
4(9 + y) + -1(y + 5) * 2 * 2 = 28
(9 * 4 + y * 4) + -1(y + 5) * 2 * 2 = 28
(36 + 4y) + -1(y + 5) * 2 * 2 = 28

Reorder the terms:
36 + 4y + -1(5 + y) * 2 * 2 = 28

Reorder the terms for easier multiplication:
36 + 4y + -1 * 2 * 2(5 + y) = 28

Multiply -1 * 2
36 + 4y + -2 * 2(5 + y) = 28

Multiply -2 * 2
36 + 4y + -4(5 + y) = 28
36 + 4y + (5 * -4 + y * -4) = 28
36 + 4y + (-20 + -4y) = 28

Reorder the terms:
36 + -20 + 4y + -4y = 28

Combine like terms: 36 + -20 = 16
16 + 4y + -4y = 28

Combine like terms: 4y + -4y = 0
16 + 0 = 28
16 = 28

Solving
16 = 28

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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