Answer:
-6n-20=-2n+4(1-3n)
Solution
The bracket should be expanded
-6n-20=-2n+4-12n
Then we collect the like terms
-6n + 2n+12n = 20+4
8n=24
Now divide both sides by 8
8n/8 =24/8
n = 3
You can now insert 3 into anywhere you see n and see how it goes
-6n-20= -2n + 4(1-3n)
-6(3) - 20 = -2(3) + 4[ 1-3(3)]
-18 -20= -6 + 4(1-9)
-38= -6 -32
-38= - 38
That's all
Explanation: