7 times the sum
of the number x and 5 is 12
Answers
Given:
✰ 7 times the sum of the number and 5 is equal to 12.
To find:
✠ The number i.e, x
Solution:
Let's understand the concept first! First we will assume the number as x. We know that 7 times the sum of the number and 5 is equal to 12. So, we will do sum of x and 5 i.e, we will add x and 5 ( x + 5 ) and then 7 times the sum, which means that 7 will be multiplied by this sum, so we will multiply 7 by it 7( x + 5 ), so we know it is equal to 12. Thus, forming an equation and then doing requisite calculations we will find the value of x i.e, the required number.
Let's find out...✧
Let the number be x
According to question,
➤ 7( x + 5 ) = 12
➤ 7x + 35 = 12
➤ 7x = 12 - 35
➤ 7x = - 23
➤ x = - 23/7
∴ The required number = - 23/7
Verification:
L.H.S
➛ 7( - 23/7 + 5 )
➛ - 23 + 35
➛ 12
= R.H.S
Hence Proved!!
_______________________________
★ Given :
7 times the sum of the number x and 5 is equal to 12.
★ To find :
The Number.
★Solution :
⚘Let the Number be x
➞ 7 (x + 5) = 12
➞ 7x + 35 = 12
➞ 7x = 12 - 35
➞ 7x = -23
➞ x = -23/7
The number is -23/7
Now let's Check our answer!
⚘Verification
➞ 7 (-23/7 + 5) = 12
➞ -23 + 35 = 12
➞ 12 = 12
L.H.S = R.HS