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3. Adam is 20 years younger than Brian. In two years Brian will be twice as old as

Adam is now. How old
are they now? Solve the problem using the elimination method.

3. Adam is 20 years younger than Brian. In two years Brian will be twice as old as-example-1
User JBeckton
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1 Answer

7 votes

Answer:

Here,

Let the age of Adam be x

and ,Brian be y

so,x=y+20.........eqn 1

and ,2(y+2)=x

or,2y+4=x......eqn 2

Now ,

subtracting eqn1 and eqn 2

so, x=y+20

x=2y+4

- - -

______________

0 = -y+16

so,y=16 and x=y+20 =16+20=36 .

so Adam is 36 years old and brian is 16.

User Matti Pastell
by
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