Answered

coucou dm de maths s il vous plait

EQUATIONS :

a) 2x - 3 = 6

b)9x + 3 = 7 x - 5

Sagot :

LULU220

A ) 2x = 6 + 3 

     2x= 9

donc 1x = 9/2 = 4,5

 

B) 9x -7x = -5 -3 

     2x = -8

    donc 1x = -8/ 2 = -4 :)

MELISSA06

a) 2x-3=6

2x=6+3

2x=9

x=9/2

x=4.5