Question

1.Rozwiąż równanie:
a. x+7 1/2=3,2
b. 12,5-x=48 1/4

c. 13 2/3+x=-5 1/6

d. x-25 1/5=-4,4

e. -7 5/6+x=8 1/3

f. -12 4/5x=1,6

g. -1,2x=-1/2

h. 5 5/8x=18

i. 7/9x=-16 1/3

Answer 1

1.Rozwiąż równanie:
a.

x+7 1/2=3,2

x = 3,2 - 7,5

x = -4,3

b.

12,5-x=48 1/4

x = 12,5 - 48,25

x = -35,75

c.

13 2/3+x=-5 1/6
x = -5 1/6 - 13 2/3

x = -5 1/6 + (-13 4/6)

x = - 18 5/6

d.

x-25 1/5=-4,4
x = -4,4 + 25,2

x = 20,8

e.

-7 5/6+x=8 1/3
x = 8 1/3 + 7 5/6

x = 8 2/6 + 7 5/6

x = 15 7/6

x = 16 1/6

f.

-12 4/5x=1,6
x = 1,6 : (-12,8)

x = -0,125

g.

-1,2x=-1/2
x = -0,5 : (-1,2)

x = (-1/2) * (-10/12)

x = 5/12

h.

5 5/8x=18
x = 18 : 45/8

x = 18 * 8/45

x = 16/5

x = 3,2

i.

7/9x=-16 1/3

x = -49/3 * 9/7

x = -63/3

x = -21