Any or advice how to solve? ? (i’m gonna have to start answering more questions in we haven’t done half the stuff on this quiz and i feel bad needing constantly ^^’ if you answer, i’ll definitely answer a question back! )

Okay, so use substitution.

x + y+ 10 = 0
y = -x -10

I just moved things around so you can substitute y in.

x^2+y-2=0
x^2+(-x-10)-2=0
x^2-x-10-2=0
x^2-x-12=0
(x-4)(x+3)=0
x=4,-3

This is answer choice B.

We can solve for 'y' in the first equation and then plug that value into the second:

Subtract x to both sides:

Subtract 10 to both sides:

Plug this in for 'y' in the second equation and solve for 'x':

Simplify:

Subtract:

Factor:

Set each one equal to 0 and solve for 'x':

So these are the x-values for the solution of this system of equations.