Question

What is the value of x?

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x =

Answer 1

x = 3

Explanation:

3 congruent angles = equilateral triangle, so 6x - 3 = 3x + 6

let's solve it

6x - 3 = 3x + 6

3x = 9

x = 9 : 3

x = 3

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check

6(3) - 3 = 3(3) + 6

18 - 3 = 9 + 6

15 = 15

same value the answer is good

Answer 2

x = 3

Explanation:

Δ ABC has 3 congruent angles (equal ) and is an equilateral triangle , with the 3 sides being congruent.

equate any 2 of the sides and solve for x

AB = AC ( substitute values )

6x - 3 = 3x + 6 ( subtract 3x from both sides )

3x - 3 = 6 ( add 3 to both sides )

3x = 9 ( divide both sides by 3 )

x = 3