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storchak [24]
2 years ago
13

-6 - (-7) The answer is not -13 Or -1 Or 13 I’m not sure how to do it :(

Mathematics
2 answers:
djverab [1.8K]2 years ago
6 0

Anytime you have an even number of minus signs, the equivalent is a plus sign. This is equivalent to

... -6 +7 = +1

_____

If you want to play around with the number line, you can find -6 at 6 units to the left of zero. Likewise, -7 is 7 units to the left of zero.

Whenever you add numbers on the number line, you go in the direction they are from zero. Both 1 and 2 are to the right of zero, so when you add 1 and 2 you go 1 unit right, then another 2 units right.

If you were to add 1 and -2, you start by realizing that -2 is to the left of zero. So you go 1 unit to the right (add 1), then 2 units to the left (add -2). The result is -1.

____

When you subtract a number on the number line, you go the direction opposite that number is from zero. (Essentially, you add its opposite.) In your problem, you have numbers -6 and -7, both to the left of zero. When you start from -6 and <em>subtract</em> -7, you go 7 units to the right, since that is the opposite direction that -7 is from zero.

Staring at -6 and going 7 units right, you end at +1.

When subtraction is written as adding the opposite, your problem is written

... -6 + (+7) = -6 +7 = +1

murzikaleks [220]2 years ago
3 0

its 1, if its not, your school's thing sucks and needs to be reprogramed

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Step-by-step explanation:

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12x-40=7x+25

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anygoal [31]

Tony will get $8.26 back.

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Dmitry [639]
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3 years ago
WILL GIVE BRAINLIEST PLZ HURRY
Sedaia [141]
Answer is b.
Now we going to solve it
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4. Now you divide 1.50
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