Mathematics, 29.05.2020 02:06 richard80

Solve this system of equations algebraically
Y+x= 19-2
x + y = 80
t. Isolate one variable in the system of equations.
y = -x²-x+19
y = -x + 80
-x+80=-82-x + 18
2 Use substitution to create a one-variable equation
3 Solve to determine the unknown variable in the equation
real number solution(s).
The system has

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Solve this system of equations algebraically
Y+x= 19-2
x + y = 80
t. Isolate one v...