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(2x+3y) +(-4x+5y•1)-(-3x+8y-4)​

Răspuns :

Răspuns:

(2x+3y)+(-4x+5y×1)-(-3x+8y-4)=(2x+3y)+(-4x+5y)-(-3x+8y-4)=2x+3y-4x+5y+3x-8y+4=x+4