Question

if the sum of two number is 16 and the second number is 7 more than first find the number​

Answer 1

first number is =x

second number is = x+7

x+(x+7)=16

2x+7=16

2x=9

x=9/2
first number =9/2
second number = 9/2+7
=(9+14)/2
=23/2

Answer 2

suppose number =$\boxed{first\:number\:x}$
and
$\boxed{second\:number\:y}$

as 1st condition ________

x+y =16------------1

2nd condition _______

y = x +7

or y-x= 7----------2

from equation 1 +2

2y = 23

$\boxed{\bf{y=\frac{23}{2}}}$

and 16

x=23/2 -7

$\boxed{\bf{x=\frac{9}{2}}}$

Answer