What are the solutions to the following system of equations?

y = x2 + 3x − 7
3x − y = −2

(3, 11) and (−3, −7)
(11, 3) and (−3, −7)
(3, 11) and (−7, −3)
No real solutions

Question

What are the solutions to the following system of equations?

y = x2 + 3x − 7
3x − y = −2

 (3, 11) and (−3, −7)
 (11, 3) and (−3, −7)
 (3, 11) and (−7, −3)
 No real solutions

visarika23 · Answer

Write second eq as
y=3x+2
Substitute this value of y in first eq
Solve for x
U will get two values of x
Use these values of x in any one of the eq and get two values y