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93+60b-30a
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93+60b-30a
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a-2b+31\left(-a\right)+62b+93
Use the distributive property to multiply 31 by -a+2b+3.
a+60b+31\left(-a\right)+93
Combine -2b and 62b to get 60b.
a+60b-31a+93
Multiply 31 and -1 to get -31.
-30a+60b+93
Combine a and -31a to get -30a.
a-2b+31\left(-a\right)+62b+93
Use the distributive property to multiply 31 by -a+2b+3.
a+60b+31\left(-a\right)+93
Combine -2b and 62b to get 60b.
a+60b-31a+93
Multiply 31 and -1 to get -31.
-30a+60b+93
Combine a and -31a to get -30a.
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