Answer:
[tex]n = -8[/tex]
Step-by-step explanation:
Solve for [tex]n[/tex] :
[tex]20 = 4 + 4n - 6n[/tex]
-Combine like terms:
[tex]20 = 4 + 4n - 6n[/tex]
[tex]20 = 4 - 2n[/tex]
-Switch sides so that variables can be on the left side of the equation:
[tex]20 = 4 - 2n[/tex]
[tex]4 - 2n = 20[/tex]
-Subtract both sides by [tex]4[/tex] :
[tex]4 - 4 - 2n = 20 - 4[/tex]
[tex]-2n = 16[/tex]
-Take [tex]-2n[/tex] and divide them on both sides of the equation:
[tex]\frac{-2n}{-2} = \frac{16}{-2}[/tex]
[tex]n = -8[/tex]
So, the value of [tex]n[/tex] is [tex]-8[/tex].