anonymous
  • anonymous
Can someone help me?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Simplify -2 - (-2)
anonymous
  • anonymous
- (-2) = +2 so -2 + 2 =..
anonymous
  • anonymous
4?

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anonymous
  • anonymous
there is a minus sign before the first 2
anonymous
  • anonymous
so 2
anonymous
  • anonymous
0
anonymous
  • anonymous
so 0 -2 + 2 = 0
anonymous
  • anonymous
it is like 2 - 2 = 0
anonymous
  • anonymous
But i thought since a - is by a - it turns positive?
anonymous
  • anonymous
yes.. that is why the second 2 became positive - (-2) = +2
anonymous
  • anonymous
-2+2
anonymous
  • anonymous
this is what i got: -2-(-2) -2+2 4-2=2
anonymous
  • anonymous
tell me how you got to the last line
anonymous
  • anonymous
-2+2 is 2-2 backwards
anonymous
  • anonymous
oh, then whats the final answer?
anonymous
  • anonymous
2-2=0
anonymous
  • anonymous
-2+2=0
anonymous
  • anonymous
you wrote : -2-(-2) -2+2 4-2=2 so i agree with : -2-(-2) -2+2 but why did you wrote 4-2=2
anonymous
  • anonymous
idk
anonymous
  • anonymous
so -2 + 2 is like 2 - 2 which is 0
anonymous
  • anonymous
^^^^^ exactly
anonymous
  • anonymous
think of -2 + 2 as like starting from 0 going left two steps (-2) and then going right two steps (+2) you end up at 0 again.
anonymous
  • anonymous
Oh. OHHHH i see, thank you so much guys. You wanna help me with my next one?
anonymous
  • anonymous
ok
anonymous
  • anonymous
-3 - [ -(-2)]
anonymous
  • anonymous
so what do you think ? show me your steps
anonymous
  • anonymous
i dont even know where to start.
anonymous
  • anonymous
so what is : -(-2) ?
anonymous
  • anonymous
wouldnt it stay 2
anonymous
  • anonymous
correct so : -3 - [ 2 ]
anonymous
  • anonymous
now what ?
anonymous
  • anonymous
yes a negative times a negative is a positive
anonymous
  • anonymous
I not sure:(
anonymous
  • anonymous
try :)
anonymous
  • anonymous
so would it be +2?
anonymous
  • anonymous
- [ 2 ] will become +2 ?
anonymous
  • anonymous
- [ 2 ] is like - [ + 2] does it equal 2 ?
anonymous
  • anonymous
..... idk....
anonymous
  • anonymous
so the rules are : - ( - a ) = a [minus times minus = plus] - ( +a) = -a [minus times plus = minus] + (-a) = -a [plus times minus = minus]
anonymous
  • anonymous
now tell me what is - [2] ?
anonymous
  • anonymous
-[+2]
anonymous
  • anonymous
?
anonymous
  • anonymous
yes, we can write it as -[+2] but what is it according to the rules
anonymous
  • anonymous
ok so it would read -3-[+2]
anonymous
  • anonymous
yes so what is the answer ?
anonymous
  • anonymous
1?
anonymous
  • anonymous
No?
anonymous
  • anonymous
no
anonymous
  • anonymous
-[+2] according to the rules (the second line) is -2
anonymous
  • anonymous
so you have -3-2
anonymous
  • anonymous
-1
anonymous
  • anonymous
no, -3-2 = -5
anonymous
  • anonymous
-3-2= -3 + -2 = -5
anonymous
  • anonymous
Oh i see, sometimes i have trouble figuring out negatives
anonymous
  • anonymous
thank you:)
anonymous
  • anonymous
yw, keep on practicing :)

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