84-7n-9-8n=225

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Solution for 84-7n-9-8n=225 equation:


Simplifying
84 + -7n + -9 + -8n = 225

Reorder the terms:
84 + -9 + -7n + -8n = 225

Combine like terms: 84 + -9 = 75
75 + -7n + -8n = 225

Combine like terms: -7n + -8n = -15n
75 + -15n = 225

Solving
75 + -15n = 225

Solving for variable 'n'.

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

Add '-75' to each side of the equation.
75 + -75 + -15n = 225 + -75

Combine like terms: 75 + -75 = 0
0 + -15n = 225 + -75
-15n = 225 + -75

Combine like terms: 225 + -75 = 150
-15n = 150

Divide each side by '-15'.
n = -10

Simplifying
n = -10

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