equation du type ax = b 3x = 9 5y = 3 4z = - 7 - 2z = - 8 7x = 4 equation du type ax + b = c 2x - 2 = 2 3z -10 = 11 1 - y = 0 1 + 5 = - 39 2 + 3z = = 9

Bonjour,

Equation du type ax = b

3x = 9

3x/3 = 9/3

x = 3

5y = 3

5y/5 = 3/5

y = 3/5

4z = - 7

4z/4 = -7/4

z = -7/4

- 2z = - 8

-2z/-2 = -8/-2

z = 4

7x = 4

7x/7 = 4/7

x = 4/7

équation du type ax + b = c

2x - 2 = 2

2x - 2 + 2 = 2 + 2

2x = 4

2x/2 = 4/2

x = 2

3z -10 = 11

3z - 10 + 10 = 11 + 10

3z = 21

3z/3 = 21/3

z = 7

1 - y = 0

1 - y + y = 0 + y

y = 1

1 + 5 = - 39 ??

2 + 3z = 9

2 + 3z - 2 = 9 - 2

3z = 7

3z/3 = 7/3

z = 7/3