Solve for a
a<-4
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-18>15a+45-3
Use the distributive property to multiply 15 by a+3.
-18>15a+42
Subtract 3 from 45 to get 42.
15a+42<-18
Swap sides so that all variable terms are on the left hand side. This changes the sign direction.
15a<-18-42
Subtract 42 from both sides.
15a<-60
Subtract 42 from -18 to get -60.
a<\frac{-60}{15}
Divide both sides by 15. Since 15 is positive, the inequality direction remains the same.
a<-4
Divide -60 by 15 to get -4.
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