Answer:

Step-by-step explanation:
x and 3x are on a straight line together. Therefore, they are supplementary and must add to 180 degrees.
Add x and 3x, and set that equal to 180.

Combine like terms on the right side of the equation. Both x and 3x have a variable, so they can be added together.


Since we want to find x, we have to isolate x. x is being multiplied by 4. The inverse of multiplication is division. Divide both sides of the equation by 4.



x is equal to 45, so the correct answer is B. 45
-31/8 equalss -3.88 so -3.88 > -3.92
(1,18), (18,1), (2,9), (9,2), (3,6), and (6,3)
Answer:
The missing value is x=5y/8
Always is the answer. becuz .2 is 20/100. i like math so ik