9-7n=2-4(n-7)

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Solution for 9-7n=2-4(n-7) equation:


Simplifying
9 + -7n = 2 + -4(n + -7)

Reorder the terms:
9 + -7n = 2 + -4(-7 + n)
9 + -7n = 2 + (-7 * -4 + n * -4)
9 + -7n = 2 + (28 + -4n)

Combine like terms: 2 + 28 = 30
9 + -7n = 30 + -4n

Solving
9 + -7n = 30 + -4n

Solving for variable 'n'.

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

Add '4n' to each side of the equation.
9 + -7n + 4n = 30 + -4n + 4n

Combine like terms: -7n + 4n = -3n
9 + -3n = 30 + -4n + 4n

Combine like terms: -4n + 4n = 0
9 + -3n = 30 + 0
9 + -3n = 30

Add '-9' to each side of the equation.
9 + -9 + -3n = 30 + -9

Combine like terms: 9 + -9 = 0
0 + -3n = 30 + -9
-3n = 30 + -9

Combine like terms: 30 + -9 = 21
-3n = 21

Divide each side by '-3'.
n = -7

Simplifying
n = -7

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