1-3⋅7+4⋅2
Multiply -3 by 7.
1-21+4⋅2
Multiply 4 by 2.
1-21+8
1-21+8
Subtract 21 from 1.
-20+8
Add -20 and 8.
-12
-12
Evaluate 1-3*7+4*2
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