Add. Use models if needed. (-3x - 7) + (4x + 7)

Mathematics

2 answers:

Lunna [17]3 years ago

7 0

-3x-7+4x+7

Negative -7 and positive 7 will give you 0.

So we're left with x. Therefore, the answer is x.

iragen [17]3 years ago

4 0

(-3x-7)+(4x+7) = -3x-7+4x+7 = -3x+4x = x

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Step-by-step explanation:

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x = 3 (because it is the period of three weeks)
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4 years ago

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Answer:

The number of people on the bus after the second stop is 8 less than the number of peoples on the bus before the 2:30 stop.

Step-by-step explanation:

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