Answer:
-1/21
Step-by-step explanation:
2/7 - 1/3
The common denominator is 21
2/7 * 3/3 - 1/3 *7/7
6/21 - 7/21
x, y, and z I think that is it
x>1
x + 18 > 19
Subtract 18 from each side
x + 18-18 > 19-18