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2 years ago

13

Amy has two older brothers. Ben is 3 years older than Amy. Chris is 10 years older than Ben. The total of their ages is 73. Form

an equation and use it to work out Amy's age.

2 answers:

Alex787 [66]2 years ago

6 0

73-(10+3)=60 you have to add 7 and 3 first, then you subtract it from 73

grigory [225]2 years ago

6 0

Amy's age=x
ben's age=x+3
chris' age=x+3+10
x+x+3+x+3+10=73
3x+16=73
3x=73-16
3x=57
x=19
Amy is 19 years old

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<u />

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