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rezolvati ecuatia :

3*(x+3,2)+2*(x-2,4)=4*(x+5,2)


Răspuns :

3*(x+3,2)+2*(x-2,4)=4*(x+5,2)=>
3x+9,6+2x-4,8=4x+20.8=>
5x-4x=20.8 - 9.6 + 4.8 =>

x=16

3x+9,6+2x-4,8=4x+20,8 5x-4x=20,8-9,6+4,8 x=16