Answer:
It simplifies to: -20x+14y-1
Step-by-step explanation:
This is really about combining like terms.
9-2x-18x+14y-10
1) Lets do the the x's first: -2x-18x = -20x
(It's -2 because of the minus sign)
2) Combine the 9-10 = -1
3) You can't combine +14y because theres no other y, so let's put the equation together: -20x+14y-1.
