In solving the system of equations \(y^2=7\) and x^2+y^2=56 what is the sum of the solutions for x?
This can guide you: https://web2.0calc.com/questions/in-solving-the-system-of-equations-y-7-and-x-2-y
Please stop these links, just solve it or are you too lazy?
x^2 + 7 = 56
x^2 = 49 take both roots
x = 7 or x = -7
Sum of solutions for x = 0
+2666 
