Step-by-step explanation:
Hey there!
<u>Your</u><u> </u><u>required answer is option</u><u> </u><u>B</u><u>.</u>
Here,
Given,
The figure is an equilateral triangle with, side (7x+9) and (x+27).
<u>By</u><u> </u><u>the</u><u> </u><u>defination</u><u> </u><u>of</u><u> </u><u>equilateral</u><u> </u><u>triangle</u><u> </u><u>we</u><u> </u><u>have</u><u>,</u>
<u>A</u><u>ll</u><u> </u><u>sides</u><u> </u><u>of</u><u> </u><u>equilateral</u><u> </u><u>triangle</u><u> </u><u> </u><u>are</u><u> </u><u>equal</u><u>.</u><u> </u>
So,

Simplify them to get answer.



Therefore the value of x is 3.
<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>