What is the answer to -16+7n+n=8n+4n ?

The answer to -16+7n+n=8n+4n is n=-4

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-16+7n+n=8n+4n

- 16 + 7 n + n = 8 n + 4 n

n = - 4

Solution steps

- 16 + 7 n + n = 8 n + 4 n

Add similar elements:

7 n + n = 8 n

- 16 + 8 n = 8 n + 4 n

Add similar elements:

8 n + 4 n = 12 n

- 16 + 8 n = 12 n

Move

16

to the right side

8 n = 12 n + 16

Move

12 n

to the left side

- 4 n = 16

Divide both sides by

- 4

n = - 4

3 x + 4 x + 30 = 84 + x + 2 x

5 x + 10 = 180

2 x - 0 = 4

\frac{1}{5} x = 6

\frac{1}{5} x = 3