a+bk=kx-d a+bk-kx=-d -a-bk+kx=d kx=a+bk+d x=(a+bk+d)/k bk-kx=-d-a k(b-x)=-d-a k=(-d-a)/(b-x) a+x/b=y |*b a+x=by x=by/a a+x=by (a+x)/y=b ax(2)+by=y by=y-ax(2) b=(y-ax(2))/y ax(2)=y-by ax(2)=y(1-b) (ax(2))/(1-b)=y ax(2)=y-by x(2)=(y-by)/a x= pierwiastek z (y-by)/a p=2ab+2bc+2ac p-2bc=2ab+2ac p-2bc=a(2b+2c) (p-2bc)/(2b+2c)=a
a+bk=kx-d d,x,k -d = a + bk - kx d = kx - bk - a d = k(x - b) - a kx = a + bk + d x = (a + bk + d)/k k różne od 0 bk - kx = -(a + d) k(b - x) = -(a + d) k = -(a + d)/(b - x) (b - x) różne od 0 czyli b różne od x .......................................................................... a+x/b=y b różne od 0 a + x = by x = by - a b = (a + x)/y y różne od 0 ................................................................... ax²+by=y by = y - ax² b = (y - ax²)/y y różne od 0 ax² = y - by x² = (y - by)/a x = √y(1 - b)/a a różne od 0 b,y,x
