Greetings!
"What is answer for n: [tex]2(n-4)=-1[/tex]?"..
Solve using the properties of equality:
Distribute the Parenthesis.
[tex]2*n-2*4=-1[/tex]
Simplify.
[tex]2n-8=-1[/tex]
Add 8 to both sides.
[tex](2n-8)+8=(-1)+8[/tex]
Simplify.
[tex]2n=7[/tex]
Divide both sides by 2.
[tex](2n)/2=(7)/2[/tex]
Simplify.
[tex]n=7/2[/tex]
or
[tex]n=3.5[/tex]
Hope this helps.
-Benjamin
