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3 years ago

How can I find x? Click for picture.

Mathematics

1 answer:

romanna [79]3 years ago

6 0

Answer: You add up all the terms given of EACH angle, and make this an addition problem that is "equal to 180" ; since all triangles have three angles that add up to 180 degrees. Then you solve for "x".
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(as follows) ; to get: " x = 29 ⅔ ° " .
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3x + 4 + 2x + x + 8 = 180 ;
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Combine the "like terms" ;

3x + 2x + x = 6x ;

4 + 8 = 12

So, we have: 6x + 12 = 180 ;

Now, subtract "12" from each side of the equation:
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6x + 12 − 12 = 180 <span>− 12 ;
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to get:

6x = 178 ;

Now, divide EACH SIDE of the equation by "6" ; to isolate "x" on one side of the equation; and to solve for "x" ;
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6x / 6 = 178 / 6 ;

to get: x = 178/6 = 29 ⅔ ° .
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x = 29 ⅔ ° .
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2 years ago

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3 years ago

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wariber [46]

Question 1:

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Personally I prefer the zero up front to make the decimal point stand out easier. Of course it's just a preference, so its up to you to decide which you prefer.

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Question 2:

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Marizza181 [45]

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2 years ago