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Sagot :

LOULAKAR

Réponse :

Explications étape par étape

Bonsoir

a) -2+x=5

x = 5 + 2

x = 7

b) x+9=16

x = 16 - 9

x = 7

c) 6x=15

x = 15/6

x = (5 * 3)/(2 * 3)

x = 5/2

x = 2,5

d) -5x=24

x = -24/5

x = -4,8

e) 4x+3x=49

7x = 49

x = 49/7

x = (7 * 7)/7

x = 7

f) -2x+7x=36

5x = 36

x = 36/5

x = 7,2

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