[tex]a) \ x\cdot 7 = 10 \ \ |+11\\\\7x = 21 \ \ /:7\\\\\boxed{x = 3}\\\\Spr.\\L = 3\cdot7-11 = 21-11 = 10\\P = 10\\L = P[/tex]
[tex]b) \ \frac{1}{2}\cdot x + 6 = 13 \ \ |-6\\\\\frac{1}{2}x = 7 \ \ /\cdot 2\\\\\boxed{x = 14}\\\\Spr.\\L = \frac{1}{2}\cdot14+6 = 7+6 = 13\\P = 13\\L = P[/tex]
[tex]c) \ 5\cdot x + 21 = 46 \ \ |-21\\\\5x = 25 \ \ /:5\\\\\boxed{x = 5}\\\\Spr.\\L = 5\cdot 5 + 21 = 25 + 21 = 46\\P = 46\\L = P[/tex]
