Question

sum of 7 and another number is 20​

Answer 1

$\:\huge\mathsf\red{Correct Question :}$

Sum of two numbers is 7 if one number is 20.

$\:\huge\mathsf\red{Answer :}$

Let the other number be x

$\:\mathsf{ x + 20 = 7 }$

$\:\mathsf{ x = 7 - 20 }$

$\:\mathsf{ x = -13 }$

Therefore, the another number is -13.

Answer 2

$\bigstar \: \bold{ \underline{ \underline{Appropriate \: \: Question-:}}}$

Sum of two numbers is 7. If one of them is 20. Find the another number.

$\bigstar \: \bold{ \underline{ \underline{Solution-:}}}$

Given-:

• Sum of two numbers is 7
• One of the number is 20

To Find-:

• Another Number = ?

Calculation-:

Let the required number be "x"

ACCORDING TO THE QUESTION

20 + x = 7

x = 7 - 20

x = -13

Verification-:

20 + (-13) 7

[ + and - = - ]

20 - 13 = 7

7 = 7

L.H.S = R.H.S

Hence, Verified

Hence, the another required number is -13.

$\rule{200pt}{4pt}$