9-2n=4(3-n)-7

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Solution for 9-2n=4(3-n)-7 equation:


Simplifying
9 + -2n = 4(3 + -1n) + -7
9 + -2n = (3 * 4 + -1n * 4) + -7
9 + -2n = (12 + -4n) + -7

Reorder the terms:
9 + -2n = 12 + -7 + -4n

Combine like terms: 12 + -7 = 5
9 + -2n = 5 + -4n

Solving
9 + -2n = 5 + -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 + -2n + 4n = 5 + -4n + 4n

Combine like terms: -2n + 4n = 2n
9 + 2n = 5 + -4n + 4n

Combine like terms: -4n + 4n = 0
9 + 2n = 5 + 0
9 + 2n = 5

Add '-9' to each side of the equation.
9 + -9 + 2n = 5 + -9

Combine like terms: 9 + -9 = 0
0 + 2n = 5 + -9
2n = 5 + -9

Combine like terms: 5 + -9 = -4
2n = -4

Divide each side by '2'.
n = -2

Simplifying
n = -2

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