Am I correct in thinking that the solutions of x and y in these simultaneous equations
y - 3x = 4
x^2 + y^2 = 34
are x = -1.5 and y = -0.5
I did this call equ1 -3x + y = 4 and equ2 x^2 + y^2 = 34
By squaring all of equ1 you get 9x^2 + y^2 = 16 call that equ3
Equ3 - equ2 is = to 9x^2 - x^2 + y^2 - Y^2 = 16 - 34 which simplifies to 8x^2 = -18 which brakes down to x = -3/2
when I sustitute x = -3/2 back into say equ1 i get y = -1/2