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15+18-81=7\times 3+102+65\times 3
Multiply 5 and 3 to get 15. Multiply 6 and 3 to get 18.
33-81=7\times 3+102+65\times 3
Add 15 and 18 to get 33.
-48=7\times 3+102+65\times 3
Subtract 81 from 33 to get -48.
-48=21+102+195
Multiply 7 and 3 to get 21. Multiply 65 and 3 to get 195.
-48=123+195
Add 21 and 102 to get 123.
-48=318
Add 123 and 195 to get 318.
\text{false}
Compare -48 and 318.
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