1/3x+1/4x+1/5x=1 19/75; 41/2: x+13/4=319/28 - вопрос №31519311314151197541213431928 от kurilen 28.09.2020 14:26

Question

Математика: 1/3x+1/4x+1/5x=1 19/75; 41/2: x+13/4=319/28

kurilen · Answer

1/3x+1/4x+1/5x=1 19/7520+15+12/60х=1 19/7547/60х=1 19/75х=1 19/75 : 47/60х=94/75*60/47х=8/5х=1 3/5  41/2:x+13/4=319/2841/2 :х = 319/28-13/441/2:х= 319-13*7/2841/2 : х=228/28х=41/2:228/28х=41/2*28/228х=574/228х= 2 цел 59/114...