Question

- 12 - [- 8 - 9 - 10 - 7 + simple (- 9 + 4 simple) plus 5 {plus 4]

Answer 1

Step-by-step explanation:

-12 - [- 8 - 9 - 10 - 7 + (- 9 + 4 ) + 5 {4}]

～ᐷ- 12 - [- 8 - 9 - 10 - 7 + (-5 ) + 20]

～ᐷ- 12 - [- 8 - 9 - 10 - 7 - 5 + 20]

～ᐷ- 12 - [- 39 + 20]

～ᐷ- 12 - [- 19]

～ᐷ- 12 - [- 39 + 20]

～ᐷ${\underline{\boxed{\sf{\red{7}}}}}$

HØPÊ ÎT HÈLPẞ YØÜ ☃️☄️...

mORE tO kNOW:

- - = +

- + = -

+ - = -

+ + = +