Question

507. Решите уравнение: 3 4 1) x + 2) 7 12 6 = 3) x 4) x + 3 3 сл со 5 24 7 12 5) y + ; 6) x N/N 1 6 11 сон 7) у 8) У 3/8 2/5 11 - 33 32 1 2​

Answer 1

Ответ:

1)x+7/12=3/4

x=3/4-7/12

x=9/12-7/12

x=2/12

x=1/6

2)x-1/6=1/9

x=1/9+1/6

x=2/18+3/18

x=5/18

3)x-3/5=3/8

x=3/8+3/5

x=15/40+24/40

x=39/40

4)x+5/24=7/12

x=7/12-5/24

x=14/24-5/24

x=9/24

x=3/8

5)y+2/7=1/3

y=1/3-2/7

y=7/21-6/21

y=1/21

6)x-1/6=7/9

x=7/9+1/6

x=14/18+3/18

x=17/18

7)y-3/8=5/32

y=5/32+3/8

y=5/32+12/32

y=17/32

8)y+2/5=1/2

y=1/2-2/5

y=5/10-4/10

у=1/10