Evaluate
-87
Factor
-87
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-10\left(-6\right)-7\left(-3\right)\left(-7\right)
Multiply -2 and 5 to get -10.
60-7\left(-3\right)\left(-7\right)
Multiply -10 and -6 to get 60.
60-\left(-21\left(-7\right)\right)
Multiply 7 and -3 to get -21.
60-147
Multiply -21 and -7 to get 147.
-87
Subtract 147 from 60 to get -87.
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