-7(-9+9)=9(-9-5)-14(-9)

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Solution for -7(-9+9)=9(-9-5)-14(-9) equation: 


Simplifying
-7(-9 + 9) = 9(-9 + -5) + -14(-9)

Combine like terms: -9 + 9 = 0
-7(0) = 9(-9 + -5) + -14(-9)

Multiply -7 * 0
0 = 9(-9 + -5) + -14(-9)

Anything times zero is zero.
0 = 9(-9 + -5) + -14(-9)

Combine like terms: -9 + -5 = -14
0 = 9(-14) + -14(-9)

Multiply 9 * -14
0 = -126 + -14(-9)

Multiply -14 * -9
0 = -126 + 126

Combine like terms: -126 + 126 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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