I need these to be simplified.
1) 6-10+1
2) -11+3+20
3) 8+(-15)+(-15)
4) 7-(...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 08.02.2021 23:40, fhishy11
I need these to be simplified.
1) 6-10+1
2) -11+3+20
3) 8+(-15)+(-15)
4) 7-(-1)+18
![answer](/tpl/images/cats/otvet.png)
Answers: 2
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