Answer:
x = 120
Step-by-step explanation:
Since they are supplementary, they add up to 180 degrees.
So, you can say x + x/2 = 180
Then, you would solve it like an algebra problem.
Multiply both sides by 2
2x + x = 360
Simplify
3x = 360
Divide both sides by 3
LOL
4a - (3a - 2b) + 3a
4a - 3a + 2b + 3a
a + 2b + 3a
4a + 2b
2.(2a + b)
Why did you delete my answer