Question

5 less than a number is 15. What is the double of the number?

plz tell​

Answer 1

$\bold{Question :}$ 5 less than a number is 15. What is the double of the number?

$\bold {Solution :}$

Let the required number be x.

Then, the double of the number=2x

Atq,

$\implies x - 5 = 15 \\ \implies x = 15 + 5 \\ \implies x = 20$

Thus,the required number = 20

$\boxed {\blue{\therefore \:double\:of\:the\:number = 2\times 20=40}}$

$\underline {\bold{Verification:}}$

$\implies x - 5 = 15 \\ \implies 20-5=15\\\implies 15=15 \\ \implies LHS=RHS$

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Answer 2

Answer:

5 less than a number is 15. Double of the number is 40

Step-by-step explanation:

Let the number be x.

5 less than the number is written as:

= x - 5

So, we have that:

x - 5 = 15

From this equation we can get the value of x.

Collecting the like terms together we have:

x - 5 = 15

x = 15 + 5

x = 20

Now, what's double the number?

We get this by multiplying the number by 2.

= 2 × 20 = 40

So double the number is 40