y=a*x+b = y + * b a x -------------------- y-b=a*x+b-b = - - y b + b * b a x -------------------- y-b=a*x = - * y b a x y=a+a+b = y + + b a a -------------------- y=b+2*a = y + b * 2 a y=2*a*x+2*b+a*x = y + + * * * a x * x 2 b 2 a -------------------- y=2*b+3*a*x = y + * * 2 b 3 * a x y=a*x+2*b-2*a*x = y - + * * * * x a x 2 b 2 a -------------------- y=2*b+-1*a*x = y + * * 2 b -1 * a x y=a*x+2*b-2*a*x+3*a*b*c+d+e*f = y + + * + d e f - * + * * c * * * x * b a x 2 b 2 a 3 a -------------------- y=a*x+2*b-2*a*x+3*a*b*c+d+e*f = y + * - a x * + 2 b * + * x * + 2 a * c d * * b e f 3 a