In ABC, what is the value of x

5.5
6.5
55
65

( B ) x = 6.5

Step-by-step explanation:

We know that all the angles of a triangle equal 180 when added together. So lets make an equation for this question.

(10x-10) + (10x+8) + 8x = 180

I just took all the angles and added them together to make 180. Now solve for x.

10x - 10 + 10x + 8 + 8x = 180 (combined like terms)

28x -2 = 180 (added 2 to both sides)

28x = 182 (divided both sides by 28)

x = 6.5

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844

understand that i don't know the answers

will someone answer his question