4-2-(-7)=

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Solution for 4-2-(-7)= equation: 


Simplifying
4 + -2 + -1(-7) = 0

Multiply -1 * -7
4 + -2 + 7 = 0

Combine like terms: 4 + -2 = 2
2 + 7 = 0

Combine like terms: 2 + 7 = 9
9 = 0

Solving
9 = 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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