I’m working on something like that now
After 1 year=x1.1
After 2 years=x1.1*1.1
………
After 5 years=x1.1*1.1*1.1*1.1*1.1=x1.61051
We know that
1) <span>Variable x is 7 more than variable y
so
x=y+7
2) </span><span>Variable x is also 1 less than y.
x=y-1
therefore
the answer is
the option
</span><span>x = y + 7
x = y – 1</span>