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CorinaCori12
a fost răspuns

rezolvati in multimea numerelor reale :
a)5x+12=-3
b)2x+1=x-11
c)-2(x-1)=x+5
d)41-5(x+1)=x

Răspuns :

Co12
a) 5x= -3-12=>x= -15:5=> x= -3
b) 2x-x= -11-1=> x= -12
c) -2x+2=x+5=> -2x-x= 5-2=> -3x=3=> x= -1
d) 41-5x-5=x=> -5x-x=5-41=> -6x=-36=> x= -36:(-6)=> x= 6

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