SOLUTION: Marvin sold his bike for $20 more than one-third of what he paid for it. He sold it for $70. How much did he pay for it?

Question 1023790: Marvin sold his bike for $20 more than one-third of what he paid for it. He sold it for $70. How much did he pay for it?
Found 2 solutions by Fombitz, lwsshak3:
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Use a substitution,

So then,

You want a common denominator

So,

and

Substituting,

Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Marvin sold his bike for $20 more than one-third of what he paid for it. He sold it for $70. How much did he pay for it?
let x=amt Marvin paid for bike

60+x=210
x=210-60=150
amt Marvin paid for bike=$150
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