7n+9=2.5n

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Solution for 7n+9=2.5n equation:


Simplifying
7n + 9 = 2.5n

Reorder the terms:
9 + 7n = 2.5n

Solving
9 + 7n = 2.5n

Solving for variable 'n'.

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

Add '-2.5n' to each side of the equation.
9 + 7n + -2.5n = 2.5n + -2.5n

Combine like terms: 7n + -2.5n = 4.5n
9 + 4.5n = 2.5n + -2.5n

Combine like terms: 2.5n + -2.5n = 0.0
9 + 4.5n = 0.0

Add '-9' to each side of the equation.
9 + -9 + 4.5n = 0.0 + -9

Combine like terms: 9 + -9 = 0
0 + 4.5n = 0.0 + -9
4.5n = 0.0 + -9

Combine like terms: 0.0 + -9 = -9
4.5n = -9

Divide each side by '4.5'.
n = -2

Simplifying
n = -2

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