Question

The system of linear equations Negative 2 x + y = 8 and Negative 3 x minus y = 7 is graphed below.

On a coordinate plane, 2 lines intersect at (negative 3, 2).

What is the solution to the system of equations?
(–3, 2)
(–2, 3)
(2, –3)
(3, 2)

Answer 1

Option A (-3, 2)

Explanation:

just got done with the quiz

Answer 2

x= -3

y= 2

Explanation:

Set new equation:

y=8+2x

Now input -3x-y=7 for y

-3x - (8x+2x)=7

Simplify

-5x-8=7

Solve by substituion

y=8+2x

-5x-8=7

y=8+2x

x=-3

Now plug in for x in y=8+2x

y=8+2(-3)

y=2

Answer:

x=-3

y=2