Answer:
15 months
Step-by-step explanation:
35x+20=545
Subtract 20 from both side to figure out how many months he paid for....
35x+20-20=545-20
35x=525
Divide 35 on both sides....
x=15
Therefore, he has been a member for 15 months
Check:
35(15)+20=545
525+20=545
545=545
IT'S CORRECT!!!
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