SOLUTION: erica has twice as many magazines as puzzle games. she has 30 of both in total. write an equation to show this

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Question 1076376: erica has twice as many magazines as puzzle games. she has 30 of both in total. write an equation to show this
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
PG=x
M=2x
2x+x=30