Answer:
127
Explanation:
We can use the Exterior Angle of a Triangle theorem to find x. It states that the exterior angle of a triangle is equal to the sum of the two opposite interior angles.
We will start with x+5. It is equal to 79 +____ an angle we don't know yet. But we do know that the angle____ and x equals 180 because they form a straight line. Therefore the unknown angle must be 180-x.
So we will set x+5=79+180-x. We will combine like terms, use inverse operations, and isolate.
x+5=79+180-x
x+5=259-x
x+x+5=259-x+x
2x+5=259
2x+5-5=259-5
2x=254
x=127