1) 2х+6+5х+5=7x+11
2) 63+9y+48+8y=17y+111
3) 12x+92+42+35x=47x+134
4) 108+96y+33+18y=114y+141
1)3/8-1/6=9/24-4/24=5/24
2)3/8+5/24=9/24+5/24=14/24=7/12
1. (0,27=27/100) 11/9*27/100=33/100
2. (0,36=36/100=9/25) (4 4/9=40/9) 9/25*40/9=8/5= 1 3/5
3. (4,2\%=0,042) 0,042*24,5=1,029
4. (66\%=0,66=66/100=33/50) 6/11*33/50=9/25