13/14 is already in simplest form because they have no common factors.
30 + 4x + 2 + 180 - (8 + 6x) = 180;The sum of all angles in a triangle is 180
32 + 4x - 8 - 6x = 0
2x = 24
x = 12
Bolded part, explanation: On a straight line, the sum of all angles is 180 degrees. We have the value of outside the triangle, the exterior angle, which, when is added with interior angle, gives 180 degrees. So we substract 8 + 6x from 180, that's the third angle in a triangle.
You check if it is even and that the sum of the digits is divisible by 3. That's the divisibility rule of 6.
I pretty sure it’s B because you have to undo what is being done to 4/5 which would be to divid it on both sides then all you have left is x + 20 so you should subtract it to get x by itself.
Answer:
6
Step-by-step explanation:
