Question

Znajdź liczbęx

a) x+4/5=1 1/2

b)x-4/5 = 1 1/2

c)5 4/9 + x =7 1/2

d)x-2 3/4 = 5 6/7

e)8 1/12-x=5 1/4

f)6 3/7-x=2 1/2

Proszę o pomoc to na jutro !!!!!!!

Answer 1

a) x+4/5=1 1/2

x+ 8 = 15

x=7

b)x-4/5 = 1 1/2

x-8 = 15

x=23

c)5 4/9 + x =7 1/2

98 + x = 135

x= 37

d)x-2 3/4 = 5 6/7

x-77 = 164

x=241

e)8 1/12-x=5 1/4

97-x = 63

-x = -34 

x=34

f)6 3/7-x=2 1/2

45-x=35

-x=-10

x=10

Answer 2

a) x +4/5= 1i11/2

    x = 1i1/2 - 4/5

    x = 1i5/10 -8/10 

    x = 15/10 - 8/10

    x = 7/10

 

b) x -4/5 = 1i1/2

    x = 1i1/2 + 4/5

   x = 15/10 + 8/10

   x = 23/10

   x = 2i3/10

 

c) 5i4/9 +x = 7i1/2

    x = 7i1/2 - 5i4/9

    x = 7i9/18 -5i8/18

    x = 2i1/18

 

d) x -2i3/4 = 5i6/7

    x = 5i6/7 +2i3/4

    x = 5i24/28 +2i21/28

    x = 7i45/28

    x = 8i17/28

 

e) 8i1/12 -x = 5i1/4

     x = -5i1/4 +8i1/12

     x = -5i3/12 + 7i13/12

     x = 2i10/12

     x = 2i5/6

 

f) 6i3/7 -x = 2i1/2

    x = -2i1/2 + 6i3/7

    x = -2i7/14 +6i6/14

    x = -2i7/14 + 5i20/14

    x = 3i13/14