resoudre les equation : 2x-3=6 9x+3=7x-5 2/3x+2=4/9x-1 5(4+3)+2(x+6)=3(x+8) Svp ce serais gentil de me repondere dans les plus bref delais !!!!!!!!!!!!!
Mathématiques
Funydu73
Question
resoudre les equation :2x-3=6 9x+3=7x-5 2/3x+2=4/9x-1 5(4+3)+2(x+6)=3(x+8)
Svp ce serais gentil de me repondere dans les plus bref delais !!!!!!!!!!!!!!!!
1 Réponse
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1. Réponse nonotata
2x-3=6
2x = 6+3
2x =9
x=9/2
9x+3=7x-5
9x-7x =-5-3
2x = -8
x = -8/2
x = -4
2/3x+2=4/9x-1
2/3x -4/9x = -1-2
6/9x -4/9x = -3
2/9x = -3
x = -3* 9/2
x = -27/2
5(4+3)+2(x+6)=3(x+8)
20+15+2x +12 = 3x+24
2x-3x = 24 -20-15-12
- x = 24 -47
-x = -23
x = 23