dau coroană urgenttttt!!!!acolo unde nu se prea vede e:A

a) a= (1000-244):14
a= 756 : 14
a=54

b) [(a:9) × 7 + 51] - 49 = 58
(a:9) × 7 + 51 = 107
(a:9) × 7 = 56
(a:9) = 8
a = 72

c) 8 × a + 573 : 3 = 203
8 × a + 191 = 203
8 × a = 12
a = 12 : 8
a = 1,5

d) a × 10 = 13500
a = 1350

e) 6 × 1 = 1 × a
6 = 1 × a
a = 6

f) 14 + 28 = 14 + 14 + 2 × a
42 = 28 + 2 × a
2 × a = 42 - 28
2 × a = 14
a = 7

a)

a × 14 + 244 = 1000

a × 14 = 1000 - 244

a × 14 = 756

a = 756 : 14

a = 54

b)

[ ( a : 9 ) × 7 + ( 102 : 2 ) ] - 49 = 58

[ ( a : 9 ) × 7 + 51 ] - 49 = 58

[ ( a : 9 ) × 7 + 51 ] = 58 + 49

[ ( a : 9 ) × 7 + 51 ] = 107

[ ( a : 9 ) × 7 ] = 107 - 51

[ ( a : 9 ) × 7 ] = 56

a : 9 = 56 : 7

a : 9 = 8

a = 8 × 9

a = 72

c)

8 × a + 573 : 3 - 93 = 210

8 × a + 191 - 93 = 210

8 × a + 191 = 210 + 93

8 × a + 191 = 303

8 × a = 303 - 191

8 × a = 112

a = 112 : 8

a = 14

d)

a × 10 : 3 = 4500

a × 10 = 4500 × 3

a × 10 = 13500

a = 13500 : 10

a = 1350

e)

1 + 1 + 1 + 1 + 1 + 1 × 1 × 1 × 1 × 1 = 1 × a

1 + 1 + 1 + 1 + 1 + 1 × 1 × 1 × 1 = 1 × a

1 + 1 + 1 + 1 + 1 + 1 × 1 × 1 = 1 × a

1 + 1 + 1 + 1 + 1 + 1 × 1 = 1 × a

1 + 1 + 1 + 1 + 1 + 1 = 1 × a

2 + 1 + 1 + 1 + 1 = 1 × a

3 + 1 + 1 + 1 = 1 × a

4 + 1 + 1 = 1 × a

5 + 1 = 1 × a

6 = 1 × a

a = 6 : 1

a = 6

f)
14 + 14 × 2 = 7 × 2 + 7 × 2 + 2 × a

14 + 28 = 14 + 14 + 2 × a

42 = 14 + 14 + 2 × a

42 = 28 + 2 × a

2 × a = 42 - 28

2 × a = 14

a = 14 : 2

a = 7