Question

if a certain number is added to five times to itself the sum is 90.find the number. ​

Answer 1

Answer:

Let's assume that the certain number is 'x'

x + 5x = 90

6x = 90

x = 90 ÷ 6

x = 15

Hence, the known number is 15

Hope it helps

Answer 2

Answer:

The number is 2 ✔✔

Step-by-step explanation:

Given that,

The sum a number and twice the number the itself is 6.

Solution :

If we consider the number as x the other number will be 2x (2× itself)

Their sum is 6

So equation form like this :

→ 2x + x = 6

Solving for x :

→ 2x + x = 6

→ 3x = 6

→ x = 6/3

→ x = 2

Therefore the number is 2 ✔

Check point :

As we got the number as 2

So,in accordance to the question sum of 2 and 2*2 will be 6

→ 2 + (2*2) = 6

→ 2 + 4 = 6

→ 6 = 6

Since,

→ L. H. S. = R. H. S.

Hence, verified ✔✔