(-30(-7))-(210(-3))=

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Solution for (-30(-7))-(210(-3))= equation: 


Simplifying
(-30(-7)) + -1(210(-3)) = 0

Multiply -30 * -7
(210) + -1(210(-3)) = 0
210 + -1(210(-3)) = 0

Multiply 210 * -3
210 + -1(-630) = 0

Multiply -1 * -630
210 + 630 = 0

Combine like terms: 210 + 630 = 840
840 = 0

Solving
840 = 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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