Question

How do you simplify `4x-3(3x-(2x+3))`?

Answer 1

`x+9`

Explanation:

When multiplying out brackets - start with the innermost brackets. Take care with the negative signs in front of a bracket because the signs will change.

There are two terms, The 4x term will only be used in the last step of simplifying.

`4x-3(3xcolor(red)(-(2x+3)))`

=`4xcolor(blue)(-3)(3x-2x-3)`

=`4x color(blue)(-9x +6x+9)`

=`4x +6x -9x+9" "larr` re-arrange with positives at the front.

=`x+9`