Question

twice a no added to 7 is 25. what is the no​

Answer 1

Step-by-step explanation:

please see the picture

hope this helps

Answer 2

Answer:

Given:-

Twice a number added to 7 is 25. What is the number?

To Find:-

what is the number which added to 7 becomes 25.

Note:-

●》Sometimes we need to find a number, for that we rearrange the sides to the other side at that times

⊙ positive number becomes negative number

⊙ negative number becomes positive number

⊙ multiple number becomes divisional number

⊙ divisional number becomes multiple number

●》Twice of a number means the two times of a number as - 2 × number = 2number.

Solution:-

One number = 7 , its sum = 25, if we consider another as "x" then according to question it will become "2x", so the equation will be~

▪︎$7 + 2x = 25$

☆ According to note point ( rearrangement )~

▪︎$2x = 25 - 7$

▪︎$2x = 18$

☆ Here, again rearrangement of 2 with multiple "x"

▪︎$x = 18 ÷ 2$

▪︎$x = 9$

☆ Hence, the x value is = 9, for another number - 2x~

▪︎$Another \ \ number => 2x = 2 × 9 => 18$

▪︎$Another \ \ number = 18$

Checking:-

So here we will check that by adding first number to second number comes 25 or not?

• $7 + 2x = 25 ?$

♤ Applying the value~

• $7 + 18 = 25 ?$

• $25 = 25 ?$

Yes!

Hence, proved that another number = 18

Answer:-

Hence, the another number = 18.

:)