kichu1
kichu1
20-01-2016
Mathematics
contestada
18a+-2a+-10a + -10b+12b+6b
Respuesta :
taskmasters
taskmasters
20-01-2016
just add/subtract the numbers with the same letters
[18-2-10]a + [-10+12+6] b
6a + 8b
Answer Link
ioana123
ioana123
20-01-2016
we will separate the numbers
18a+-2a+-10a
-10b+12b+6b
RULES:
+ with + = +
- with - = +
+ with - = -
we will have 18a-2a-10a (we applied the last rule)=
6a
-10b+12b+6b= it's not wrong if we write
12b-10b+6b=
8b
Putting all togheter, we will have
6a+8b
Answer Link
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