SOLUTION: Peter and John are two brothers. Peter is older than John. Given that peter's age is (5x-4) years and John's age is (2x+1) A) write down an expression, in terms of X, for how muc

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Question 1016951: Peter and John are two brothers. Peter is older than John. Given that peter's age is (5x-4) years and John's age is (2x+1)
A) write down an expression, in terms of X, for how much older Peter is than John and simplify your answer.
B) if Peter is ten years older than John, calculate the
I) value of x
II)ages of Peter and John.
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
P=Peter's age; J=John's age
.
A).
P-J=(5x-4)-(2x+1)=3x-5 .
ANSWER A): Peter is 3x-5 older than John.
.
B).
10=3x-5
15=3x
5=x
.
I).
ANSWER I): Value of x is 5.
.
II).
P=5x-4=5(5)-4=25-4=21 .
ANSWER IIA). Peter is 21 years old.
J=2x+1=2(5)+1=10+1=11 .
ANSWER IIB). John is 11 years old.
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