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15-6\times 1=-1+3-\left(1+2\right)+10
Multiply 15 and 1 to get 15.
15-6=-1+3-\left(1+2\right)+10
Multiply 6 and 1 to get 6.
9=-1+3-\left(1+2\right)+10
Subtract 6 from 15 to get 9.
9=2-\left(1+2\right)+10
Add -1 and 3 to get 2.
9=2-3+10
Add 1 and 2 to get 3.
9=-1+10
Subtract 3 from 2 to get -1.
9=9
Add -1 and 10 to get 9.
\text{true}
Compare 9 and 9.
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