3 years ago

What is the value of x?

1 answer:

8 0

The external angle is equal to the sum of the opposite internal angles.
.. 6x +1 = (2x +10) +79
.. 4x = 88 . . . . . . . . . . . . . subtract 2x+1
.. x = 22

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kiruha [24]

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Step-by-step explanation:

1. By definition, the associative property of addition is:

$(a+b)+c=a+(b+c)$

2. Therefore, if you have the following expression:

$(3+1)+11=15$

You apply the Asociative property of addition by regrouping the numbers as following:

$3+(1+11)=15$

3. Then, you can conclude that the correct option is B.

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