Question

Solve this system of equations algebraically:

y + x = 19 – x2
x + y = 80
1. Isolate one variable in the system of equations. y = –x2 – x + 19
y = –x + 80
2. Use substitution to create a one-variable equation. –x + 80 = –x2 – x + 19
3. Solve to determine the unknown variable in the equation.

The system has
real number solution(s).

Answer 1

0

Explanation:

Answer 2

I'm guessing the blank after has is what the number of real number solutions there are. Your answer would be 0.