Evaluate
-26
Factor
-26
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-10-\left(5-4+6+8\right)-\left(8-7\right)
Subtract 9 from -1 to get -10.
-10-\left(1+6+8\right)-\left(8-7\right)
Subtract 4 from 5 to get 1.
-10-\left(7+8\right)-\left(8-7\right)
Add 1 and 6 to get 7.
-10-15-\left(8-7\right)
Add 7 and 8 to get 15.
-25-\left(8-7\right)
Subtract 15 from -10 to get -25.
-25-1
Subtract 7 from 8 to get 1.
-26
Subtract 1 from -25 to get -26.
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