bonjour, je suis en seconde pouvez vous m'aidé svp ? Résoudre les équations : 4x = 12 2x + 7 = 20 4h - 12 = 88 -12 = 24 - 4v 6 + 8b = -9 -7 = 4,5 - 2c

[tex]bonjour\\\\\\4 x = 12\\x = 3\\\\2 x + 7 = 20\\2 x = 20 - 7 \\2 x = 13\\x = 13/2\\\\4 h - 12 = 88 \\4 h = 88 + 12\\4 h = 100\\h = 25 \\\\- 12 = 24 - 4 v\\4 v = 24 + 12\\4 v = 36\\v = 9 \\\\8 b = - 9 - 6\\8 b = - 15\\b = - 15/8\\\\2 c = 4.5 + 7\\2 c = 11.5\\c = 11.5/2 \\\\[/tex]

4x = 12

x = 12/4

x = 3

2x + 7 = 20

2x = 20 - 7

2x = 13

x = 13/2

4h - 12 = 88

4h = 88 + 12

4h = 100

h = 100/4

h = 25

-12 = 24 - 4v

4v = 24 + 12

4v = 36

v = 36/4

v = 9

6 + 8b = -9

8b = -9 -6

8b = - 15

b = -15/8

-7 = 4.5 - 2c

2c =4.5 + 7

2c = 11.5

c = 11.5/2

c = 5.75