SOLUTION: Evaluate -16-(9-2z) if z= -3

Algebra ->  Angles -> SOLUTION: Evaluate -16-(9-2z) if z= -3      Log On


   

Question 661847: Evaluate -16-(9-2z) if z= -3
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
Starting with
-16-(9-2z)
substituting z
-16-(9-2(-3)) which is the same as -16-(9-(-6)),
but it may be easier to rewrite as adding negative
-16 -(9+ -2(-3))
-16 -(9+6), whichis the same as -16-(9-(-6))
-16 -(15)
-16 + -15 = -31