2-(-7)=9

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Solution for 2-(-7)=9 equation: 


Simplifying
2 + -1(-7) = 9

Multiply -1 * -7
2 + 7 = 9

Combine like terms: 2 + 7 = 9
9 = 9

Add '-9' to each side of the equation.
9 + -9 = 9 + -9

Combine like terms: 9 + -9 = 0
0 = 9 + -9

Combine like terms: 9 + -9 = 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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