Shrek777
Shrek777
20-05-2017
Mathematics
contestada
(a-1)-(a-2)+(a-3)= ?
Respuesta :
Seprum
Seprum
20-05-2017
First of all you need to get rid of parenthesis:
[tex](a-1)-(a-2)+(a-3)=a-1-a+2+a-3[/tex]
Then sum members of expression:
[tex]a-1-a+2+a-3=(a - a + a) + (2 - 1 - 3)=a-2[/tex]
So, [tex](a-1)-(a-2)+(a-3)=a-2[/tex]
Answer Link
Justin23m
Justin23m
20-05-2017
(a-1)-1(a-2)+(a-3)=a-1-a+2+a-3=a-2
The answer is a-2
Answer Link
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