SVP aidez je suis nul en Equations : 1) 8x-32=0 2) 5x+3=-4x-15 3) 7x-2=5x+9 4) 11x+13=64x-15 Merci d’avance

8x-32 = 0
8x-32+32 = 0+32
8x = 32
x = 32/8
x = 4

5x+3 = -4x-15
5x+4x+3-3 = -4x+4x-15-3
9x = -18
x = -18/9
x = -2

7x-2 = 5x+9
7x-5x-2+2 = 5x-5x+9+2
2x = 11
x = 11/2

11x+13 = 64x-15
11x-64x+13-13 = 64x-64x-15-13
-53x = -28
x = -28/(-53)
x = 28/53

Salut :)

1) 8x-32=0
8x = 32
x = 32/8
x = 4

2) 5x+3=-4x-15
9x + 3 = -15
9x = -18
x = -18/9
x = -2

3) 7x-2=5x+9
2x - 2 = 9
2x = 11
x = 11/2
x = 5.5

4) 11x+13=64x-15
13 = 53x - 15
28 = 53x
x = 28/53

J'espère t'avoir aidé(e) ! :)