1+18-7n=-9

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Solution for 1+18-7n=-9 equation: 


Simplifying
1 + 18 + -7n = -9

Combine like terms: 1 + 18 = 19
19 + -7n = -9

Solving
19 + -7n = -9

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 + -7n = -9 + -19

Combine like terms: 19 + -19 = 0
0 + -7n = -9 + -19
-7n = -9 + -19

Combine like terms: -9 + -19 = -28
-7n = -28

Divide each side by '-7'.
n = 4

Simplifying
n = 4

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