7(n-5)-(4-3n)=9

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Solution for 7(n-5)-(4-3n)=9 equation:


Simplifying
7(n + -5) + -1(4 + -3n) = 9

Reorder the terms:
7(-5 + n) + -1(4 + -3n) = 9
(-5 * 7 + n * 7) + -1(4 + -3n) = 9
(-35 + 7n) + -1(4 + -3n) = 9
-35 + 7n + (4 * -1 + -3n * -1) = 9
-35 + 7n + (-4 + 3n) = 9

Reorder the terms:
-35 + -4 + 7n + 3n = 9

Combine like terms: -35 + -4 = -39
-39 + 7n + 3n = 9

Combine like terms: 7n + 3n = 10n
-39 + 10n = 9

Solving
-39 + 10n = 9

Solving for variable 'n'.

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

Add '39' to each side of the equation.
-39 + 39 + 10n = 9 + 39

Combine like terms: -39 + 39 = 0
0 + 10n = 9 + 39
10n = 9 + 39

Combine like terms: 9 + 39 = 48
10n = 48

Divide each side by '10'.
n = 4.8

Simplifying
n = 4.8

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