Question

Hi guys I am having some trouble with this question I think I am doing it right but could use a little help. Here it is Thanks!!

(The sum of the angle measures of any triangle is 180 degrees. Suppose that one angle in a triangle has a degree measure of 6x-8 and another has a degree measure of 3x+4. Write an expression for the degree measure of the third angle in the triangle.

This is what I did so far I added both angles 6x-8 + 3x-4= 9x-4. I think now I'm suppose to subtract from the sum of 180? some further help would be appreciated.

Answer 1

Yes, looks good :)
\(\large\rm (6x-8)+(3x+4)+c=180\)\[\large\rm 9x-4+c=180\]To solve for the missing angle c, we'll have to move all the stuff to the other side,
involve it with the 180.

Answer 2

Ok cool makes a little sense (:

Answer 3

can you elaborate all the stuff to the other side?

Answer 4

other side of the equation?

Answer 5

Think about how each term is interacting with this angle c.
We need to perform simple inverse operations to isolate (solve for) this angle c.

So for example, 4 is being `subtracted` from c, right?
So we'll add 4 to each side.

Answer 6

So we'll `add` 4 to each side,
because adding is the opposite of subtracting*

Answer 7

oh ok makes sense!!

Answer 8

Cool!
\(\large\rm \color{green}{\text{Welcome to OpenStudy! :)}}\)

Answer 9

thanks!!

Answer 10

got it all figured out!!