What is the x-value of the solution to this systems of equations?
-4x + 9 = -3y
y = 4 - x

{x,y} = { 3,1} ig = (1)

Step-by-step explanation:

y

[2] y = -x + 4

// Plug this in for variable y in equation [1]

[1] -4x + 3•(-x +4) = -9

[1] -7x = -21

// Solve equation [1] for the variable x

[1] 7x = 21

[1] x = 3

// By now we know this much :

x = 3

y = -x+4

// Use the x value to solve for y

y = -(3)+4 = 1

it is c, trust i got your back lol

step-by-step explanation: