Emily spent X dollars on Friday, twice that amount on Saturday, and then three times X on Sunday. Over the three days, she spent $120. What is the value of X, in dollars?
How much did Emily spend on Friday? ** She spent X dollars on Friday.
How much did Emily spend on Saturday? ** She spent 2X dollars on Saturday.
How much did Emily spend on Sunday? ** She spent 3X dollars on Sunday.
Write an equation? ** X+2X+3X=120
Simplify ** 6X=120
Divide by 6 ** X=<<20=20>>20
#### 20