Question

efetue as operações reduzindo os termos semelhantes.​

Answer 1

Resposta:

$c)~(\frac{-3x}{2} -\frac{y}{3})+(\frac{x}{5}-\frac{y}{4} )+(2x+y)\\ \\ -\frac{3x}{2}-\frac{y}{3} +\frac{x}{5}-\frac{y}{4}+2x+y\\ \\-\frac{3x}{2} +\frac{x}{5} +2x\\ \\ mmc=10\\ \\ \frac{-15x+2x+20x}{10} =\frac{7x}{10} \\ \\ -\frac{y}{3} -\frac{y}{4} +y\\ \\ mmc=12\\ \\ \frac{-4y-3y+12y}{12} =\frac{5y}{12} \\\\ \\ resposta:~~~~\frac{7x}{10}+ \frac{5y}{12}$

$d)~(\frac{a}{2} +b-6)+(\frac{2a}{3} +2b-5)\\ \\ \frac{a}{2} +\frac{2a}{3} \\ \\ mmc=6\\ \\ \frac{3a+4a}{6} =\frac{7a}{6} \\ \\ +b+2b=+3b\\ \\ -6-5=-11\\ \\ \\ resposta:~~~~\frac{7a}{6} +3b-11$