(30-4n)-(15-3n)=

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Solution for (30-4n)-(15-3n)= equation:


Simplifying
(30 + -4n) + -1(15 + -3n) = 0

Remove parenthesis around (30 + -4n)
30 + -4n + -1(15 + -3n) = 0
30 + -4n + (15 * -1 + -3n * -1) = 0
30 + -4n + (-15 + 3n) = 0

Reorder the terms:
30 + -15 + -4n + 3n = 0

Combine like terms: 30 + -15 = 15
15 + -4n + 3n = 0

Combine like terms: -4n + 3n = -1n
15 + -1n = 0

Solving
15 + -1n = 0

Solving for variable 'n'.

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

Add '-15' to each side of the equation.
15 + -15 + -1n = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -1n = 0 + -15
-1n = 0 + -15

Combine like terms: 0 + -15 = -15
-1n = -15

Divide each side by '-1'.
n = 15

Simplifying
n = 15

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