20+(-7+2)-(-3-7)=

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Solution for 20+(-7+2)-(-3-7)= equation: 


Simplifying
20 + (-7 + 2) + -1(-3 + -7) = 0

Combine like terms: -7 + 2 = -5
20 + (-5) + -1(-3 + -7) = 0
20 + -5 + -1(-3 + -7) = 0

Combine like terms: -3 + -7 = -10
20 + -5 + -1(-10) = 0

Multiply -1 * -10
20 + -5 + 10 = 0

Combine like terms: 20 + -5 = 15
15 + 10 = 0

Combine like terms: 15 + 10 = 25
25 = 0

Solving
25 = 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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