Answer:
[tex] -4 = x[/tex]
And then we can replace the value of x on equation (1) or (2) and we got:
[tex] y = 4* (-4) -4 = -20[/tex]
And then we have our solutuon x = -4, y = -20
Step-by-step explanation:
For this case we have the following system of equations:
[tex] y = 4x-4 [/tex] (1)
[tex] y= 5x[/tex] (2)
And we can solve this system of equation using the method of elimination for example or we can set equal both equation since both are equal to y, like this:
[tex] 4x-4 = 5x[/tex]
Now w can subtract 4x from both sides and we got:
[tex] -4 = x[/tex]
And then we can replace the value of x on equation (1) or (2) and we got:
[tex] y = 4* (-4) -4 = -20[/tex]
And then we have our solutuon x = -4, y = -20
