Question

Przykład
42-3=24
42-24=3x
18=3x
x=6
z1
28-4x=12 35-6x=11 45-7x=17 63-5x=28 49-2x=35 54-6x=12 42- 4x=14 72- 7x=9 48-5x=18

Answer 1

28-4x=12
-4x = -16 /:(-4)
x = 4

35-6x=11
-6x = -24 /:(-6)
x = 4

45-7x=17
-7x = -28 / :(-4)
x = 4

63-5x=28
-5x = -35 /:(-5)
x = 7

49-2x=35
-2x = -14 /:(-2)
x = 7

54-6x=12
-6x = -42 /:(-6)
x = 7

42- 4x=14
-4x = -28 /:(-4)
x = 7

72- 7x=9
-7x = -63 /:(-7)
x = 9

48-5x=18
-5x = -30 /:(-5)
x = 6

Answer 2

28-4x=12
28-12=4x
16=4x
x=4
35-6x=11
35-11=6x
24=6x
x=4
45-7x=17
45-17=7x
28=7x
x=4
63-5x=28
63-28=5x
35=5x
x=7
49-2x=35
49-35=2x
14=2x
x=7
54-6x=12
54-12=6x
42=6x
x=7
42- 4x=14
42-14=4x
28=4x
x=7
72- 7x=9
72-9=7x
63=7x
x=9
48-5x=18
48-18=5x
30=5x
x=6

Answer 3

28-4x=12
28-12=4x
16=4x
x=4

35-6x=11
35-11=6x
24=6x
x=4

45-7x=17
45-17=7x
28=7x
x=4

63-5x=28
63-28=5x
35=5x
x=7

49-2x=35
49-35=2x
14=2x
x=7

54-6x=12
54-12=6x
42=6x
x=7

42- 4x=14
42-14=4x
28=4x
x=7

72- 7x=9
72-9=7x
63=7x
x=9

48-5x=18
48-18=5x
30=5x
x=6