Question

a number is 4 times another number and their sum is 15 solve the equation

Answer 1

Let one number be x
and other be y
First, a/q
x = 4y
Second a/q
x+y = 15

Answer 2

$<b><font face=Copper black size=4 colour=purple>$
$<b><marquee direction = "up" > <h3>$Let,

One number = x

Another number = y

Let, x > y

A/q

x = 4y _________( 1 )

Also,

x + y = 15

4y + y = 15 [ From ( 1 ) ]

5y = 15

y = 3

Put this in ( 1 )

x = 4 ( 3 )

x = 12

Hence,

One number = 12

Another number = 3

^^"