Question

What is the value of x?



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x =

Answer 1

Answer:

8 is your answer for x

Step-by-step explanation:

Note that this is an equilateral triangle, meaning that all of the sides are congruent. This means that all the angel measurements are congruent.

First, divide 180 with 3 (3 because there are 3 angles)

180/3 = 60

Each angle must equal 60. You are solving for x. Set the expression with x as the variable equal to 60

7x + 4 = 60

Isolate the x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. First, subtract 4 from both sides.

7x + 4 (-4) = 60 (-4)

7x = 60 - 4

7x = 56

Next, divide 7 from both sides.

(7x)/7 = (56)/7

x = 56/7

x = 8

8 is your answer for x.

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Answer 2

As all the Sides in the Given Triangle are Equal  :

⇒ The Given Triangle is an Equilateral Triangle

We know that in an Equilateral Triangle all Angles are Equal to 60°

⇒ (7x + 4)° = 60°

⇒ 7x = 60° - 4°

⇒ 7x = 56°

⇒ x = 8°