Question

Find the expression for the sum of a number and another number which is $10$ less than thrice the original number.

Answer 1

Here, we have to find the expression

Let the original number is $x$

then the other number is $10$ less than thrice the original number

So, the other number is $3x-10$

Now, According to the question,

Sum of both number is-

$x+3x-10=4x-10$

Hence the expression is $4x-10$