Question

what's the ordered pair that is a solution to the system of equations.
y = 2x - 7 x + 2y = 11 ?

Answer 1

By substitution: x + 2y = 11 becomes x + 2(2x +7) = 11. solving this equation for x gives x = 5. We then substitute 5 in for x in the first equation and find y to be equal to 3.

The ordered pair representing the solution to the system is (5,3)