Question

Simplify the following expressions:
5x + 4 + (-x) -1

Answer 1

`4x+3`

Explanation:

`5x+4+(-x)-1`

Remove parentheses:
`(-a)=-a`

`=5x+4-x-1`

Group like terms

`=5x-x+4-1`

Add similar elements:
`5x-x=4x`

`=4x+4-1`

Add/subtract the numbers:
`4-1=3`

`=4x+3`