# How do you simplify #8x-6+x-1#?

##### 2 Answers

It is 9x-7.

#### Explanation:

The rule is that the numbers goes with numbers and the letters goes with the letters. So first of all you can reorder them as

So it is

9x - 7

#### Explanation:

Simplify by

#color(blue)"collecting like terms"#

#color(blue)"like terms"" are terms which have the same variable (letter) in them"# Example: 6x and 4x are like terms as they both have an x in them.

To collect them (simplify) we add/subtract their

#color(red)"coefficients"# the numbers in front of them.so 6x + 4x = 10x and 6x - 4x = 2x

Notethat 4x and#2x^2# are NOT like termsas

#x^2" means " x xx x# which is not the same as just x itself.Using this on the question.

8x - 6 + x - 1 = 8x + x - 6 -1 = 9x - 7

Notethe coefficient of x is 1, that is x = 1x