Solve the following system of equations:

x − 2y = 14
x + 3y = 9

(1, 12)

(−1, −12)

(12, −1)

(12, 1)

Question

Solve the following system of equations:

x − 2y = 14
x + 3y = 9

(1, 12)

(−1, −12)

(12, −1)

(12, 1)

radar · Answer

Subtract the two given equations
getting -5y=5, or y=-1

that is all you need to do as there is only one choice that has y = -1,  the third choice
(12, -1)

radar · Answer

That was the lazy way, let me check and actually solve for x, substituting -1 for y in the first equation:  x -2(-1)=14
x+2=14
x=14-2=12   Yup

radar · Answer

Any questions?

anonymous · Answer

that all thank u

radar · Answer

ur welcome and good luck in your studies.