Answer:
\(a=3\)
Step-by-step explanation:
we have
\(5x-y=8\)
we know that
If a ordered pair lie on the graph of the equation
then
the ordered pair must be satisfy the equation
so
Substitute the value of point \((a,7)\) in the equation and solve for a
\(5(a)-7=8\)
\(5(a)=8+7\)
\(5(a)=15\)
\(a=15/5=3\)
