решите уравнение x-7/12=3/4

x-7/12=3/4
x-7/12=9/12
x=9/12 + 7/12
x=16/12
x= 1 4/12

3/4+7/12 = 3*3/3*4 +7/12=9/12+7/12=9+7/12=16/12

х=16/12

y-3/8=5/32

5/32+3/8=5/32+4*3/4*8=5/32+12/32=5+12/32=17/32
у = 17/32

у-2/5=1/2

2/5+1/2=2*2/2*5+5*1/5*2=4/10+5/10=4+5/10=9/10
у=9/10