Mathematics
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22west:
Subtract -b+3 from -11b-4
8 years ago
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22west:
@dude
8 years ago
dude:
If you are subtracting you have to rewrite like
\(11b-4-(-b+3)\)
Distribute the negative first
8 years ago
22west:
So the negative turns into b?
8 years ago
22west:
Positive b?
8 years ago
dude:
What is negative times a negative?
8 years ago
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22west:
Negative?
8 years ago
dude:
No, its a positive
8 years ago
22west:
-11b - 4 = 4?
8 years ago
22west:
-15 sorry
8 years ago
22west:
Is that the answer?
8 years ago
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dude:
Not quite, we have to distribute first you're going too fast
8 years ago
22west:
Okay
8 years ago
22west:
We only have 7 minutes
8 years ago
dude:
|dw:1524084535188:dw|
8 years ago
dude:
I cannot help you if this is a form of school assessment.
8 years ago
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22west:
No
8 years ago
22west:
Just a question my teacher gave us
8 years ago
dude:
Alright so do
\(-1\cdot -11=\)
and
\(-1\cdot 3=\)
8 years ago
22west:
11 and -3
8 years ago
dude:
Not quite, and also my mistake for wrong numbers
Supposed to be
\(-1\cdot -1=\)
and
\(-1\cdot 3=\)
Look out for the signs!
8 years ago
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22west:
1 and -3
8 years ago
dude:
Right so it should be
\(11b-4+1b-3\)
Now we combine like terms
8 years ago
22west:
Without the variable b it would be 5
8 years ago
22west:
10 seconds
8 years ago
22west:
Nvm 5 more minutes
8 years ago
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dude:
|dw:1524084952671:dw|
8 years ago
22west:
13b and 1
8 years ago
dude:
Check your math
What is 11 + 1? x'D
8 years ago
22west:
12b and 1
8 years ago
22west:
Lol
8 years ago
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dude:
-4-3 is not 1
8 years ago
22west:
Sorry only have 2 minutes
8 years ago
22west:
-1
8 years ago
dude:
No, if you have 2 numbers with a negative just add them but keep the negative sign
8 years ago
22west:
Yeah -1
8 years ago
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dude:
Add them lol
What is 4+3?
8 years ago
22west:
7
8 years ago
dude:
But keep the negative, so -7
8 years ago
22west:
-7
8 years ago
22west:
12b and -7?
8 years ago
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dude:
Right so your answer is 12b-7
8 years ago
22west:
Thank you
8 years ago
22west:
Gtg byeeeee
8 years ago
dude:
Alright cya
8 years ago
22west:
@dude
8 years ago
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22west:
8 years ago
22west:
I got it wrong
8 years ago
22west:
I guess it was:
8 years ago
dude:
Ah that was my mistake! I forgot about the sign at the beginning
\(\color{red}{11b-4+1b-3}\) What I had
\(\color{purple}{(-)}\color{green}{11b-4+1b-3}\) i missed the negative
8 years ago
22west:
Okay
8 years ago
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22west:
It's fine dude
8 years ago