maedu73

Bonjour

1. 4(2x-3) = 3×3

8x-12 = 9

8x = 9+12

8x = 21

x = 21/8

2. 3(2x+3) = 2(7x-2)

6x+9 = 14x-4

6x+9-14x = -4

-8x = -4 - 9

-8x = -13

x = 13/8