Выразить х: ax-bx=c; ax+bx=-c; -ax+b=d; ax-d=bx; ax+b=-d; ax:d=c; a:x=d (d-x):b=c; b:(c-x)=d; ax-b=c;

a*x - b*x = c; x*(a-b )= c;x = c/(a-b).a*x + b*x = -c; x*(a+b) = -c;x = -c/(a+b).-a*x + b = d; -a*x = d-b;-x = (d-b)/a;x = (b-d)/a.a*x - d = b*x;a*x - b*x = d;x*(a-b) = d; x = d/(a-b).a*x + b = -d; a*x = -d-b;x = -(d+b)/a.a*x/d = c;a*x = c*d;x = c*d/a.a/x = d;a = d*x;x = a/d. (d-x)/b = c;d - x = c*b;-x = c*b-d;x = d-c*d. b/(c-x) = d;b = d*(c-x);b = d*c - d*x;d*x = d*c - b;x = (d*c-b)/d. a*x-b = c; a*x = c+b;x = (c+b)/a.