Question

Ravi tells his son Krishna, Eight years ago, I was eight times as old as you were then. Write the linear equation in two variable representing the information
a)x - 8y + 56 = 0

b)x - 7y + 42 = 0

c)x - 8y + 64 = 0

d)x - 9y + 72 = 0
pls answer fast!
with explanation​

Answer 1

Answer:

I have answered your question but this time I explain it.

$let \: the \: present \: age \: of \: krisha \: be \: x \\ present \:age \: of \: ravi = y \\ \\ eight \: years \: ago \\ ravi \: age \: = 8(y - 8) = 8y - 64 \\ \\ \alpha cq \\ x - 8y - 64 = 0 \\ \\ clearly \: this \: is \: your \: answer$