Question 526098
2x-3y=7
If we have above equation we don't know what is value of x and y.

But a solution has given which (5,1). It means that (x,y)=(5,1)
x=5
y=7

When we put these values in given equation we have

2x-3y=7
2(5)-3(1)=7
10-3=7
7=7

It means that (5,1) is a solution of above equation