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-590
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-590
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15+8\times 5\left(-6\right)-\left(-7\left(-10\right)\right)-295
Multiply -2 and -4 to get 8.
15+40\left(-6\right)-\left(-7\left(-10\right)\right)-295
Multiply 8 and 5 to get 40.
15-240-\left(-7\left(-10\right)\right)-295
Multiply 40 and -6 to get -240.
-225-\left(-7\left(-10\right)\right)-295
Subtract 240 from 15 to get -225.
-225-70-295
Multiply -7 and -10 to get 70.
-295-295
Subtract 70 from -225 to get -295.
-590
Subtract 295 from -295 to get -590.
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