2(10-2n)-7n=-18.5

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Solution for 2(10-2n)-7n=-18.5 equation: 


Simplifying
2(10 + -2n) + -7n = -18.5
(10 * 2 + -2n * 2) + -7n = -18.5
(20 + -4n) + -7n = -18.5

Combine like terms: -4n + -7n = -11n
20 + -11n = -18.5

Solving
20 + -11n = -18.5

Solving for variable 'n'.

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

Add '-20' to each side of the equation.
20 + -20 + -11n = -18.5 + -20

Combine like terms: 20 + -20 = 0
0 + -11n = -18.5 + -20
-11n = -18.5 + -20

Combine like terms: -18.5 + -20 = -38.5
-11n = -38.5

Divide each side by '-11'.
n = 3.5

Simplifying
n = 3.5

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