Question

This is math and what is this answer please help me What is (-21)+(-9)

Answer 1

The answer is -30 easier way just do -21 - 9 same answer

Answer 2

Hey Veahlove32,

Lets solve your problem step by step.


`(-21)+(-9)`

To solve the problem we have to follow the PEMDAS order of operations.

Key note to remember: Negative plus negative is always negative.


`\mathrm{Apply\:rule\:}+\left(-a\right)\:=\:-a`

Therefore,
`\left(-21\right)-9=-30`


`=-30`

Hope this helps,

AnthrαX