Step-by-step explanation:
Hope it helpful to you ok good morning
Get like terms together. you might have to move across the equals sign
3x-x=-6+82
2x=76
x=38
Answer:
215
Step-by-step explanation:
you add all three together and then divide by three to get the average.
Answer:
x = 18
Step-by-step explanation:
The sum of the angles in a quadrilateral is 360
2x + 3x + 7x + 8x = 360
Combine like terms
20x = 360
Divide both sides by 20
x = 18