Gretchen has 110 coins. There are 30 more gold coins than silver coins. How many gold coins does Gretchen have?
Let x be the number of silver coins Gretchen has
Gretchen has x+30 gold coins.
x+x+30=110
2*x=80
x=<<40=40>>40
Gretchen has 40+30=<<40+30=70>>70 gold coins
#### 70