Question

solve the system by substitution... show work
-2x-y=-14
3x-y=11

Answer 1

x==0, y==-11

Answer 2

how did you get that?

Answer 3

solve one equation for y:

3x-y =11 --> y = 3x -11

substitute it into other equation
-replace y with (3x-11)

-2x-y = -14 --> -2x -(3x-11) = -14

solve for x

-2x -3x +11 = -14
-5x = -25
x = 5

Substitute 5 in for x to solve for y:

y=3x-11 --> y = 3(5) -11

y = 15 -11
y = 4