5n-3(2n-7)=9

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Solution for 5n-3(2n-7)=9 equation:


Simplifying
5n + -3(2n + -7) = 9

Reorder the terms:
5n + -3(-7 + 2n) = 9
5n + (-7 * -3 + 2n * -3) = 9
5n + (21 + -6n) = 9

Reorder the terms:
21 + 5n + -6n = 9

Combine like terms: 5n + -6n = -1n
21 + -1n = 9

Solving
21 + -1n = 9

Solving for variable 'n'.

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

Add '-21' to each side of the equation.
21 + -21 + -1n = 9 + -21

Combine like terms: 21 + -21 = 0
0 + -1n = 9 + -21
-1n = 9 + -21

Combine like terms: 9 + -21 = -12
-1n = -12

Divide each side by '-1'.
n = 12

Simplifying
n = 12

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