Question

Resolva: y/3 +5=4y/9

Answer 1

Vamos lá

y/3 +5 = 4y/9

mmc(3, 9) = 9

3y/9 + 45/9 = 4y/9

3y + 45 = 4y

4y - 3y = 45

y = 45

Answer 2

$\frac{3y}{9} -\frac{4y}{9} =\frac{-5}{9} \\\frac{-y}{9} =\frac{-5}{9} \\-y=-5(-1)\\y = 5$