Question

(-3x/2-y/3) + (x/5-y/4) + (2x+y)

me digam a resposta rápido por favor!!

Answer 1

Resposta:

$(-{3x\over2}-{y\over3})+({x\over5}-{y\over4})+(2x+y)\\ \\ ({-9x-2y\over6})+({4x-5y\over20})+(2x+y)\\ \\ mmc(6,20)=60\\ \\ {10(-9x-2y)\over60}+{3(4x-5y\over60}+{60(2x+y)\over60}\\ \\ {-90x-20y+12x-15y+120x+60y\over60}\\ \\ {-90x+12x+120x-20y-15y+60y\over60}\\ \\{ 42x\over60}+{25y\over60}\\ \\ simplificando\\ \\ {7x\over20}+{5y\over24}$