SOLUTION: Susie is 5 years older than Juan. If the sum of their age is 35, write and equation using only one variable to express their ages. How old is Susie?

Question 795382: Susie is 5 years older than Juan. If the sum of their age is 35, write and equation using only one variable to express their ages. How old is Susie?
Answer by sunny1992(35) (Show Source): You can put this solution on YOUR website!
suppose juan is X year old
so susie is X+5 years old
sum of their age:
X+(X+5)=35
2x+5=35
2x=35-5
2x=30

x=15
susie = X+5 = 15+5 = 20 years old
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