10n-12-9n+4=-7

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Solution for 10n-12-9n+4=-7 equation:


Simplifying
10n + -12 + -9n + 4 = -7

Reorder the terms:
-12 + 4 + 10n + -9n = -7

Combine like terms: -12 + 4 = -8
-8 + 10n + -9n = -7

Combine like terms: 10n + -9n = 1n
-8 + 1n = -7

Solving
-8 + 1n = -7

Solving for variable 'n'.

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

Add '8' to each side of the equation.
-8 + 8 + 1n = -7 + 8

Combine like terms: -8 + 8 = 0
0 + 1n = -7 + 8
1n = -7 + 8

Combine like terms: -7 + 8 = 1
1n = 1

Divide each side by '1'.
n = 1

Simplifying
n = 1

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