ChimsNoodles ChimsNoodles

28-04-2021
Mathematics

contestada

Determine ig the following has no solutions, infinite solutions, or one solution
x+y=5
-5x-4y=-18

Respuesta :

meowmeow223334 meowmeow223334

28-04-2021

We can use substitution or elimination
Let’s use substitution
Make slope intercept equation for the first equation
Y = -x + 5
Now plug in the y value for the second equation
-5x - 4(-x + 5) = -18
-5x + 4x - 20 = -18
-1x = 2, x = -2

There is one solution

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