Move the -7 to the right, its sign will flip (do you know why?)
Negate both sides to change -x to x
-x = 16+7
-x = 23
x = -23
-9x(5-2x)Mutltiply the number outside of the parenthesis with the numbers inside the parenthesis
Final Answer: -45x+18x^2
This answer can no longer be simplified.
Right in the middle of 0 and 1
for 1 it's 1/8 and the second is and the other is 1/15 of an hour