Question

(x+4) : (y+1) = 2 :
{
x+2/4-1= 3/1

Answer 1

(x+4) : (y+1) = 2 /* (y+1)
{
x+2/4-1= 3/1

(x+4)= 2*(y+1)
{
x= 3- 2/4 + 1

x+4= 2y + 2
{
x= 3 1/2

3 1/2 + 4 - 2 = 2y
{
x= 3 1/2

2y= 5 1/2 / *1/2
{
x= 3 1/2

y=11
{
x= 3 1/2