X +21 > 21
x can be anything except 0
Answer:
Since U is the midpoint of XY,
first u need the value of any one variable
Answer:
10x - 20
Step-by-step explanation:
<em>Distribute 5 </em>to <em>each</em> of the terms within the parentheses to get 5(2x) - 5(4) = 10x - 20.