a. 5x = 3x+3 b. 8x = 12x+4 c. 4-7y = 10y d. 7x+1 = -4 -x e. 2+3x = 7-3x Bonjour, je n arrive pas a ses équations Ce serait gentil de m aider ​

Réponse:

a. 5x-3x = 3

2x =3

x = 3÷2

b. 8x-12x =4

-4x =4

x= 4÷(-4) = -1

c. 4= 10y+7y

4 = 17y

y = 4÷17

d. 7x +x = -4-1

8x = -5

x= -5÷8

e. 3x + 3x =7-2

6x = 5

x=5÷6

Bonjour!

a. 5x = 3x + 3

5x-3x=3

2x=3

x=3/2

b. b. 8x=12x+4

-4x=4

x=-1

c. c. 4-7y=10y

17y=4

y=4/17

d. 7x + 1 =-4-x

7x+x= -4-1

8x=-5

x=-5/8

e. 2 + 3x = 7-3x

3x+3x=7-2

6x=5

x=5/6