Question

MATHHHHH

Answer 1

So we have

\[ -7(-2n-5)=147\]

We have to distribute, so
\[14n+35\] this comes from the -7(-2n-5) part of the equation.

Now we must subtract 35 from each side!
\[14n+35-35=147-35\]

Furthermore, we must simplify.
\[14n=112\]

Divide the numbers by the SAME factor,
\[\frac{ 14n }{ 14 }=\frac{ 112 }{ 14 }\]

If you divide the numbers you get your answer which is,

\[n=8\]

I hope this helped!

Answer 2

For the second screenshot

Answer 3

We have,

\[-5(3n+6)=-105\]

1. We must distribute!
\[-15n-30=-105\]

2. Add 30 to both sides
\[-15n-30+30=-105+30\]

3. Simplify
\[-15n=-75\]

4. Divide
\[\frac{ -15n }{ -15 }=\frac{ -75 }{ -15 }\]

5. Simplify and get answer
\[n=5\]

Answer 4

NO

Answer 5

BAD MATH