-20.5=-6n-3n

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Solution for -20.5=-6n-3n equation:


Simplifying
-20.5 = -6n + -3n

Combine like terms: -6n + -3n = -9n
-20.5 = -9n

Solving
-20.5 = -9n

Solving for variable 'n'.

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

Add '9n' to each side of the equation.
-20.5 + 9n = -9n + 9n

Combine like terms: -9n + 9n = 0
-20.5 + 9n = 0

Add '20.5' to each side of the equation.
-20.5 + 20.5 + 9n = 0 + 20.5

Combine like terms: -20.5 + 20.5 = 0.0
0.0 + 9n = 0 + 20.5
9n = 0 + 20.5

Combine like terms: 0 + 20.5 = 20.5
9n = 20.5

Divide each side by '9'.
n = 2.277777778

Simplifying
n = 2.277777778

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