18-2x=4x is given
18=6x is addition property of equality
3=x is I think division property of equality bc you divided to get x=3
You would have to Multiply 50 by 2 and then Multiply the answer to 300.
700x + 375(27 - x) = 15000
Solve for x
X=15 business class
Economy class 27-15=12
