Question

What is the solution to the system of equations?

2x – y = 7

y = 2x + 3

(2, 3)
(2, 7)
no solution
infinite number of solutions

Answer 1

Plug in y into the first equation.
2x-2x+3=7.
X's cancel(because of the integer rules) So now your question looks like this:
3=7 \(\huge\color{Red}{X}\)
No solution:)