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chubhunter [2.5K]
2 years ago
10

What can be added to -1 so it can be a positive 1?

Mathematics
1 answer:
Tanzania [10]2 years ago
8 0
So represent missing number with x
x means unknown so
x+-1=+1
adding a negative means subtraction
x-1=1
you can do anything to an equation as long as you do it to both sides
add 1 to both sides
x+1-1=1+1
x+0=2
x=2

the number is 2
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