Question

the sum of three times a numbet (x)and 15 is 42 find the number​

Answer 1

Given:

The sum of three times a Number (x) and (15) is equal to 42.

To find:

The numbers.

Solution:

The first no. will be $\bf{3x(3×x=3x)}$

And,the second no. will be $\bf{15}$

A/Q

$\implies\bf{3x+15=42}$

$\implies\bf{3x=42-15}$

$\implies\bf{3x=27}$

$\implies$$x=\frac{27}{3}$

$\implies\bf{x=9}$

Therefore,the first number will be

$\leadsto3x=3×9=27$

$\bf\underline\blue{Verification:-}$

$\leadsto\bf{27+15=42}$

$\leadsto\bf{42=42}$

Hence,Verified.