Question

решите срочно надо в,г

Answer 1

в) 2 * $\frac{1,3x+7}{5}$ < x - $\frac{6x-2}{25}$ = 2 * $\frac{\frac{13}{10}x+7 }{5}$ < x - $\frac{6x-2}{25}$ = 2 * $\frac{13x+70}{25}$ < x - $\frac{6x-2}{25}$ = 13x+70 < 25x - 6x +2 = 13x+70 < 19x + 2 = 13x - 19x < 2 -70 = -6x < -68 = x>$\frac{34}{3}$

г) Нач.форма = 3 * $\frac{\frac{1}{2}x-1 }{2}$ - $\frac{x}{8}$ > $\frac{3}{10} x$ =  3 * $\frac{\frac{x-2}{2} }{2}$ - $\frac{x}{8}$ > $\frac{3}{10} x$ =  3 * $\frac{x-2}{4}$ - $\frac{x}{8}$ > $\frac{3}{10} x$ = $\frac{3(x-2)}{4}$ - $\frac{x}{8}$ > $\frac{3}{10} x$ = $\frac{3x-6}{4}$ - $\frac{x}{8}$ > $\frac{3}{10} x$ = 10(3x-6) - 5x > 12x = 30x - 60 - 5x > 12x = 25x - 60 > 12x = 25x-12x > 60 = 13x > 60 = x> $\frac{60}{13}$