Question 675668
Hello, 
Let's have x be the number of games:
We know 3 games average 120 so we can write the following equation:

3(120)+ 145x/3+x=130
Multiply by 3+x to get:
360+145x=390+130x
Subtract 130x and 360 to get:
15x=30
x=2 
So we know it will take two more games of 145. 
Make sense?
RJ
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