Ax+B=C x=(B-C)/A
Ax^2+Bx+C=0 x1=(-b+(b^2-4ac)^(1/2))/(4a) x2=(-b-(b^2-4ac)^(1/2))/(4a)
a1x+b1y=c1
a2x+b2y=c2 x=(b1c2-b2c1)/(a2b1-a1b2) y=(a1c2-a2c1)/(a1b2-a2b1) Ax+B=C x=(B-C)/A
Ax^2+Bx+C=0 x1=(-b+(b^2-4ac)^(1/2))/(4a) x2=(-b-(b^2-4ac)^(1/2))/(4a)
a1x+b1y=c1
a2x+b2y=c2 x=(b1c2-b2c1)/(a2b1-a1b2) y=(a1c2-a2c1)/(a1b2-a2b1)