Question

3(3x+5)-4(3x-5)=0
Решите уравнение пж​

Answer 1

$\displaystyle 3(3x+5)-4(3x-5)=0 \\\\ \displaystyle 9x+15-12x+20=0 \\\\ \displaystyle -3x+35=0 \\\\ \displaystyle -3x=-35 \\\\ \displaystyle x=\frac{35}{3} \; (ili \; \; 11\frac{2}{3})$