Question

1: y/4+1=7-y/2
2: x-2/4+x-3/2=x-1/3+x/6

Answer 1

Olá, boa noite ☺

Resoluções:

1)

y/4+1/1=7/1-y/2

m.m.c.(2,4)=4

(y+4)/4=(28-2y)/4

Elimina-se o denominador 4.

y+4=28-2y
y+2y=28-4
3y=24
y=24/3
y=8

2)

x/1-2/4+x/1-3/2=x/1-1/3+x/6

m.m.c.(2,3,4,6)=12

(12x-6+12x-18)/12=(12x-4+2x)/12

Elimina-se o denominador 12.

12x-6+12x-18=12x-4+2x
12x+12x-12x-2x=-4+6+18
12x-2x=20
10x=20
x=20/10
x=2

Bons estudos :)