$$3(x-2)-5(2x+1) = 3x - 6 - 10x - 5 = -7x - 11$$
Ответ: $$-7x - 11$$
$$7-\frac{1}{2}(4x-6) = 7 - 2x + 3 = 10 - 2x$$
Ответ: $$10 - 2x$$
$$7(5-x)+4(3x + 5)-8 = 35 - 7x + 12x + 20 - 8 = 5x + 47$$
Ответ: $$5x + 47$$
$$\frac{1}{2}(6-8x)-2(3x+1) = 3 - 4x - 6x - 2 = -10x + 1$$
Ответ: $$-10x + 1$$
$$4(0,5-1,5x)-9(\frac{2}{3}+\frac{2}{9}x) = 2 - 6x - 6 - 2x = -8x - 4$$
Ответ: $$-8x - 4$$
$$5(\frac{1}{2}x+3,2)+3(2\frac{1}{6}x-4\frac{2}{3}) = \frac{5}{2}x + 16 + 3(\frac{13}{6}x - \frac{14}{3}) = \frac{5}{2}x + 16 + \frac{13}{2}x - 14 = \frac{18}{2}x + 2 = 9x + 2$$
Ответ: $$9x + 2$$