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Sagot :

ANASAG

Réponse:

a) x/5 -3 =4

x/5 = 4+3

x/5 = 7

x/5 × 5 = 7 ×5

x = 35

b) x/2 +4 =1

x/2 = 1-4

x/2 = -3

x/2 ×2 = -3×2

x = -6

c) 7/2y +5 = 8

7/2y = 8-5

7/2y = 3

2/7 × 7/2y = 2/7 × 3

y = 6/7

d) 5/3y +1/3 = 5/6

5/3y = 5/6 -1/3

5/3y = 5/6 -2/6

5/3y = 3/6

3/5 × 5/3y = 1/2 × 3/5

y = 3/10

Réponse :

Explications étape par étape :

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