=4(n-9)-(3-n)

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Solution for =4(n-9)-(3-n) equation:


Simplifying
0 = 4(n + -9) + -1(3 + -1n)

Reorder the terms:
0 = 4(-9 + n) + -1(3 + -1n)
0 = (-9 * 4 + n * 4) + -1(3 + -1n)
0 = (-36 + 4n) + -1(3 + -1n)
0 = -36 + 4n + (3 * -1 + -1n * -1)
0 = -36 + 4n + (-3 + 1n)

Reorder the terms:
0 = -36 + -3 + 4n + 1n

Combine like terms: -36 + -3 = -39
0 = -39 + 4n + 1n

Combine like terms: 4n + 1n = 5n
0 = -39 + 5n

Solving
0 = -39 + 5n

Solving for variable 'n'.

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

Add '-5n' to each side of the equation.
0 + -5n = -39 + 5n + -5n
Remove the zero:
-5n = -39 + 5n + -5n

Combine like terms: 5n + -5n = 0
-5n = -39 + 0
-5n = -39

Divide each side by '-5'.
n = 7.8

Simplifying
n = 7.8

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