Question

Which equation results from adding the equations in this system? -2x+y=8 5x-y=-5

Answer 1

3x = 3

Step-by-step explanation:

Got it right on edge 2020 :)

Answer 2

3 x = 3.

Value of x = 1 and y = 10.

Step-by-step explanation:

• Adding the two equations:

-2x + y = 8

5x - y = -5

• Will give:

5x + (-2x) + y + (-y) = 8 + (-5)

∴ 3 x = 3.

∴ x = 1.

• Substituting in any equation to get y:

-2(1) + y = 8.

∴ y = 10.