Liliana wants to write an equivalent expression for n+3-5n+6.

Step-by-step explanation:

n +3 - 5n + 6 = n - 5n + 3 +6

= -4n + 9

n=9/4

Step-by-explanation:

Equate the equation to zero

n+3-5n+6=0

Collect like terms

n-5n+3+6=0

-4n+9=0

Add 4n to both sides

9=4n

Divide both sides by 4

n=9/4

the answer

b. they are parallel and will never intersect.

noncoplanar points are points that do not lie on the same line.