Răspunsuri

2014-07-26T16:10:29+03:00
X/y=2/5

x=2y/5

2x+5y/3x+8y=  2*2y/5 + 5y/ (3*2y/5) +8y=

=4y/5 + 5y/6y/5 +8y=

=4y/5 + 5y * 5/6y +8y=

= 4y/5 + 25/6 +8y    aducem la acelasi numitor

=24y +125+240y=

=264y +125
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