Question

Simplify the following expression.(12x-2.1)-(19x+6.9)

Answer 1

The given algebraic expression is

`(12x-2.1)-(19x+6.9)`

To simplify this expression, we need to solve those parentheses in the first place, multiplying the sign in front of each of them.

`12x-2.1-19x-6.9`

Now, we reduce like terms. Remember that like terms are those who have the same variable, and those who don't have variables at all.

`12x-19x-2.1-6.9=-7x-9`

Therefore, the simplest form of the given expression is

`-7x-9`