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Answer:
Step-by-step explanation:
5(x - 1.5) = 22.5
5x - 7.5 = 22.5
5x = 15
x = 3
Answer:
boiling and melting
Step-by-step explanation:
Answer:
-(20+z)/y = x
Step-by-step explanation:
-20=xy +z
Subtract z from each side
-20 -z = xy+z-z
-20 -z = xy
Divide each side by y
(-20 -z)/y = xy/y
Factor out a negative
-(20+z)/y = x