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3 years ago

11

What is the value of x

1 answer:

VashaNatasha [74]3 years ago

5 0

Answer:

x = 40

Step-by-step explanation:

According to the Supplementary Angles Theorem, set <em>4x</em><em> </em><em>-</em><em> </em><em>20</em><em> </em>and <em>x</em><em> </em>equal to 180. Once done, combine like-terms to get <em>5x</em><em> </em><em>-</em><em> </em><em>20</em><em> </em><em>=</em><em> </em><em>180.</em><em> </em>So, straight off the bat, we know that <em>5x</em> has to equal 200 [bringing 20 over to the right side of the equivalence symbol], therefore 40 is equal to <em>x</em><em>.</em>

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Which points are on the graph of the equation - 3x + 6y + 5 = -7?

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Answer:

C and E

Step-by-step explanation:

To solve this problem, let's plug in each coordinates into the equation.

A:

$-3(-3) + 6(6) + 5 = -7$
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A. cannot be the answer, as 50 does not equal -7.

B:

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C:

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C. can be the answer, as -7 does equal -7.

D:

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D. cannot be the answer, as -31 does not equal -7.

E:

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Answer:

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