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26 votes
26 votes
Find the value of x. 984 (149-x) 128 2x+4)

User Micapam
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1 Answer

16 votes
16 votes

You have a pentagon. In order to determine the value of x for the given expression, of the measure of the angles, take into account that the sum of the interior angles of a pentagon is 540°.

Then, by using the given expressions you have:

(98) + (149 - x) + (2x + 4) + (114) + (128) = 540

To solve for x, proceed as follow:

(98) + (149 - x) + (2x + 4) + (114) + (128) = 540 eliminate parenthesis

98 + 149 - x + 2x + 4 + 114 + 128 = 540 simplify like terms left side

493 + x = 540 subtract 493 both sides

x = 540 - 493

x = 47

Hence, the value of x is x = 47

User Mohini Mhetre
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