Question

Решите уравнения 1)x-4/5-2=3x/2 2)x-1/2-2x/3=x+3/5

Answer 1

$1)\quad \frac{x-4}{5}-2= \frac{3x}{2} \; |\cdot 10\\\\2(x-4)-20=5\cdot 3x\\\\2x-8-20=15x\\\\-28=13x\\\\x=-\frac{28}{13}\\\\x=-2\frac{2}{13}\\\\2)\quad \frac{x-1}{2} - \frac{2x}{3} = \frac{x+3}{5} \; |\cdot 30\\\\15(x-1)-10\cdot 2x=6(x+3)\\\\15x-15-20x=6x+18\\\\15x-20x-6x=18+15\\\\-11x=33\\\\x=-3$