Ж)м+3/8м=1/4
11/8м=1/4
м=1/4//11/8
м=1/4*8/11=2/11
з)у-2/9у=4 2/3
7/9у=14/3
у=14/3//7/9
у=14/3*9/7
у=6
и)2/5z+2/3z-7/15z=2 1/2
6/15z+10/15z-7/15z=5/2
9/15z=5/2
z=5/2//9/15
z=5/2*15/9=75/18
к)3 1/2*(2/3х+4/7)=2 1/3
7/2*2/3х+7/2*4/7=7/3
7/3х+2=7/3
7/3х=1/3
х=1/3//7/3
х=1/3*3/7=1/7
л)(5/8х-1/5)*3/4=3/4
5/8х-1/5=1
5/8х=6/5
х=6/5//5/8
х=6/5*8/5=48/25
м)3/5z+2/3z-3=4/5
9/15z+10/15z=19/5
19/15z=19/5
z=19/5//19/15
z=19/5*15/19=3