Solve -4x+y=-1 and Y=2x-5 using substitution

x= -2, y= -9

Step-by-step explanation:

let -4x+y=-1 be [1]

and y=2x-5 be [2]

Sub [2] into [1]

-4x+(2x-5)=-1

-4x + 2x -5 = -1

-2x -5 = -1

-2x = 4

2x = -4

x = -2

Sub x=-2 into [2]

y=2(-2)-5

y=-4-5

y=-9

the answer is c

hope this !

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system