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2 (x+1)-3 (2-x)=x+3 (2x+1)
vă rog ajutati-ma repedee


Răspuns :

2(x+1)-3(2-x)=x+3(2x+1) => 2x+2-6+3x=x+6x+3 => 5x-4=7x+3 => 5x-7x=3+4 => -2x=7 => c= -7/2