express the following statement as a linear equation in two variables by taking present ages (in years) of father and son as x and y respectively. age of fater 5 years ago was 2 year more than 7 times the age of his son at that time.
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Answer:
Let the age of son be x.
Thus, age of father is 4x.
After 5 years, their ages will be x+5 and 4x+5 years respectively.
As per the question, we have
4x+5=3(x+5)
⇒4x+5=3x+15
⇒x=10
Age of father will be 4x=4×10=40 years.
Thus when son is 10 years old, father is 40 years.
Answered by
0
Answer:
Let the age of son be x.
Thus, age of father is 4x.
After 5 years, their ages will be x+5 and
4x+5 years respectively.
As per the question, we have
4x+5=3(x+5)
→ 4x+5=3x+15
⇒x=10
Age of father will be 4x=4x10=40 years.
Thus when son is 10 years old, father is
40 years.
Step-by-step explanation:
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