Help me Resoudre chaque equations 3(2y+7)-4=7-5(4-3y) 2y(3y-4)+5=3y(2y-5)-4
Mathématiques
cauline0701
Question
Help me
Resoudre chaque equations
3(2y+7)-4=7-5(4-3y)
2y(3y-4)+5=3y(2y-5)-4
Resoudre chaque equations
3(2y+7)-4=7-5(4-3y)
2y(3y-4)+5=3y(2y-5)-4
1 Réponse
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1. Réponse mohayati2006
3(2y+7)-4=7-5(4-3y)
6Y+21-4=7-20+15Y
6Y+17=-13+15Y
15Y-6Y=17+13
9Y=30
Y=30/9
Y=10/3
2y(3y-4)+5=3y(2y-5)-4
6Y²-8Y+5=6Y²-15Y-4
6Y²-6Y²+5+4=-15Y+8Y
9=-7Y
Y=-9/7