Question

Variable x is 7 more than variable y. Variable x is also 1 less than y. Which of the following pairs of equations best models the relationship between x and y? (4 points)
x = 1y
x = y + 7

x = y + 7
x = y – 1

y = x + 8
y = x – 1

y = 7x
y = x + 1

Answer 1

We know that
1) Variable x is 7 more than variable y
so
x=y+7

2) Variable x is also 1 less than y.
x=y-1

therefore 

the answer is
the option
x = y + 7
x = y – 1