Question

Resolva a equação: 2y/4 - y-5/3 - y/2 = 1/2

Answer 1

Tira o m.m.c de 4,3,2 que dá 12

2y/4-y-5/3-y/2=1/2

6y/12-4(y-5)/12-6y/12=1/2

6y/12-4y+20/12-6y/12=1/2

6y-10y+20/12=1/2

-4y+20/12=1/2

2(-4y+20)

-8y+40=12

-8y=12-40

-8y= -28 (multiplica tudo por -1)

8y=28

y= 28/8 (simplifica por 4)

y=7/2