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3 years ago

7

Add the linear expressions: 2n + 6 and 6n -2

1 answer:

adelina 88 [10]3 years ago

7 0

Just add like terms so (2n + 6n) + (6-2) = 8n-4

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3 years ago

5n + 5= 45 Please help...<br><br>constant=_, coefficient=_

madreJ [45]

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Step-by-step explanation:

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Can someone solve this question?

Rom4ik [11]

The triangles are isosceles. The following notation are for the angles. For example ABD is refer to the angle located in the B vertex, formed by the segments AB and BD.

$ABD = ADB\\40 + 2ADB = 180\\ADB = 70 = ABD\\$

$70 + DBC + 30 = 180\\DBC = 180 - 100 = 80$

Then

$BCD = BCD\\2BCD + 80 = 180\\BCD = 50$

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3 years ago