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Sergio039 [100]
3 years ago
13

What is the sum of -2-(-17)

Mathematics
2 answers:
AlladinOne [14]3 years ago
8 0

Answer: Hi!

Remember, when you're subtracting a negative, that's equal to adding a positive. So -2-(-17) is actually equal to -2 + 17!

-2 + 17 = 15

The expression -2-(-17) is equal to 15.

Hope this helps!

mart [117]3 years ago
3 0
15
the subtraction sign and negative sign in 17 come together and form the plus sign making -2+17
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Lisa is now six years older than Cheryl. In two years, Lisa will be twice as old as Cheryl. How old is Lisa now?
Elena-2011 [213]
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Define x :
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Let Cheryl be x years old.
Cheryl = x
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In two years time:
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Cheryl = x + 2
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Lisa will be twice as old as Cheryl :
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x + 8 = 2(x + 2)

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Solve x :
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x + 8 = 2(x + 2)
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