lilyclairehutson lilyclairehutson
  • 02-02-2019
  • Mathematics
contestada

Suppose a+b=0 so what equals a-b

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 02-02-2019

Answer:

a-b = 2a  

a-b = -2b

Step-by-step explanation:

a+b = 0

Subtract b from each side

a+b - b=0-b

a = -b

a-b =

Replace a with -b

-b -b= -2b

a = -b

Divide by -1

-a =b

or replace b with -a

a - (-a)

a+a

2a

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