SOLUTION: My brother is 5years older than I am in 7years time I will be 3quarters of his age. What is my current age?

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Question 993349: My brother is 5years older than I am in 7years time I will be 3quarters of his age.
What is my current age?
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
x=your current age; B=brother's age=x+5
.
x+7=(0.75)(B+7)
x+7=(0.75)((x+5)+7)
x+7=(0.75)(x+12)
x+7=0.75x+9
0.25x=2
x=8
ANSWER: You are currently 8 years old.
.
CHECK:
B=x+5=8+5=13 . Brother is 13 years old.
x+7=(0.75)(B+7)
8+7=(0.75)(13+7)
15=(0.75)(20)
15=15