8n+15-2n+4=55

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Solution for 8n+15-2n+4=55 equation:


Simplifying
8n + 15 + -2n + 4 = 55

Reorder the terms:
15 + 4 + 8n + -2n = 55

Combine like terms: 15 + 4 = 19
19 + 8n + -2n = 55

Combine like terms: 8n + -2n = 6n
19 + 6n = 55

Solving
19 + 6n = 55

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-19' to each side of the equation.
19 + -19 + 6n = 55 + -19

Combine like terms: 19 + -19 = 0
0 + 6n = 55 + -19
6n = 55 + -19

Combine like terms: 55 + -19 = 36
6n = 36

Divide each side by '6'.
n = 6

Simplifying
n = 6

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