Triangles... if the three angles of a triangle are x/3, x/3, and x what is x?

Question

If the three angles of a triangle are x/3, x/3, and x, what is the value of x?

I tried to do it like this:

X/3 + X/3 + X = 180
(X/3 + X/3) x 3 + X = 180 x 3
3X= 540
540/3 = 180
x = 180

Obviously that's not right. So how do I do this? I don't know what to do...

Answer 1

x/3 + x/3 + x = 180
2x/3 +x = 180 (the equivalent of 1/3 + 1/3)
2x/3 + 3x/3 = 180 (you can put a one in front (3/3 = 1))
5x/3 = 180
5x = 540
x = 108
x/3 = 36

Hope it helps...

Answer 2

x/3 + x/3 + x = 180
or 5x/3 = 180
or x = 180*3/5 = 108

Answer 3

Your equation is right. It's just on your second line, you forgot to multiply the single x by 3, which would make it 3(x/3)--or x, plus 3(x/3)--another x, plux 3(x)--or 3x, making 5x in all. Then, you take the 540 you got by multiplying 180 by 3, and divide it by 5--and there's your answer, 108.

Answer 4

little change can make a huge difference:

X/3+X/3+X=180
(X/3 +X/3) x 3 + X x 3 = 180 x 3
5X = 540
X = 108