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slega [8]
3 years ago
12

(2a - 3b + 5c) - (-3a - 7c)

Mathematics
2 answers:
ollegr [7]3 years ago
4 0

Answer:

5a-3b+12c

Step-by-step explanation:

(2a - 3b + 5c) - (-3a - 7c)

Distribute the minus sign

2a -3b +5c +3a +7c

Combine like terms

5a-3b+12c

Sidana [21]3 years ago
3 0

Answer:5a -3b + 12c

Step-by-step explanation:

<em><u>Question: </u></em>

(2a - 3b + 5c) - (-3a - 7c)

<em><u>First step:</u></em>

Distribute negitive sign

(2a - 3b + 5c) + (3a + 7c)

<em><u>Second Step:</u></em>

Remove parenthesis

2a - 3b + 5c + 3a + 7c

<em><u>Third Step:</u></em>

Add like terms

<u><em>Final Answer:</em></u>

5a -3b + 12c

<!> Brainliest is much appreciated! <!>

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<u>Solution:</u>

Given, The measures of 5 of the Interior angles of a hexagon are: 115.125", 85", 150", and 170".  

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Now let us find the 6th interior angle,  

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Then, 75 + exterior angle = 180  

Exterior angle = 180 – 75 = 105.  

Hence, exterior angle is 105 and 1st option is correct.

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