The answer to the question
Answer:

Step-by-step explanation:








<h3>Hope it is helpful...</h3>
Answer:
I think the answer for the first one is 3 I am not sure about the second one
Answer : x = 20
Explanation :
3x + 2x +20 + 4x - 20 = 180
(3+2+4=9)
9x + 20 - 20
The 20s cancel each other out because one is positive and the other is negative
9x = 180
9x/9 = 180/9
X = 180 divided by 9
X = 20