Answer:
10n-13+3y
Step-by-step explanation:
The only way to simplify is add like terms. This is an expression so no answer can be displayed.
n+9n=10 n
-10-3=-13
and 3y is by itself.
Set both of the equations on the inside of the parentheses equal to zero.
2x - 1 = 0
X + 3 = 0
Now solve for x in both equations
X = 1/2
X = -3
20/50=.44! :D Hope this helps!