1)2/15:(1/5x-1/3)-1/12=1/24 2) 2/9:(5/9x-1/2)+1/7=1/3 Ответы 1) 7 2) 3 / -это знак обыкновенной дроби Дам 30 баллов Побыстрее

№1 2/15÷(1/5х-1/3)-1/12=1/24 2/15÷(1/5х-1/3)=1/24+1/12 2/15÷(1/5х-1/3)=1/24+2/24 2/15÷(1/5х-1/3)=3/24 2/15÷(1/5х-1/3)=1/8 1/5х-1/3=2/15÷1/8 1/5х-1/3=2/15×8/1 1/5х-1/3=16/15 1/5х-1/3=1 1/15 1/5х=1 1/15+1/3 1/5х=1 1/15+5/15 1/5х=1 6/15 1/5х=1 2/5 х=1 2/5÷1/5 х=7/5÷1/5 х=7/5×5/1 х=7 2/9÷(5/9х-1/2)+1/7=1/3 2/9÷(5/9х-1/2)=1/3-1/7 2/9÷(5/9х-1/2)=7/21-3/21 2/9÷(5/9х-1/2)=4/21 5/9х-1/2=2/9÷4/21 5/9х-1/2=2/9×21/4 5/9х-1/2=1/3×7/2 5/9х-1/2=7/6 5/9х-1/2=1 1/6 5/9х=1 1/6+1/2 5/9х=1 1/6+3/6 5/9х=1 4/6 5/9х=1 2/3 х=1 2/3÷5/9 х=5/3×9/5 х=1/1×3/1 х=3