(9-7)-(7-9)=

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Solution for (9-7)-(7-9)= equation: 


Simplifying
(9 + -7) + -1(7 + -9) = 0

Combine like terms: 9 + -7 = 2
(2) + -1(7 + -9) = 0
2 + -1(7 + -9) = 0

Combine like terms: 7 + -9 = -2
2 + -1(-2) = 0

Multiply -1 * -2
2 + 2 = 0

Combine like terms: 2 + 2 = 4
4 = 0

Solving
4 = 0

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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