6+20-5=7n+9-4n

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Solution for 6+20-5=7n+9-4n equation:


Simplifying
6 + 20 + -5 = 7n + 9 + -4n

Combine like terms: 6 + 20 = 26
26 + -5 = 7n + 9 + -4n

Combine like terms: 26 + -5 = 21
21 = 7n + 9 + -4n

Reorder the terms:
21 = 9 + 7n + -4n

Combine like terms: 7n + -4n = 3n
21 = 9 + 3n

Solving
21 = 9 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
21 + -3n = 9 + 3n + -3n

Combine like terms: 3n + -3n = 0
21 + -3n = 9 + 0
21 + -3n = 9

Add '-21' to each side of the equation.
21 + -21 + -3n = 9 + -21

Combine like terms: 21 + -21 = 0
0 + -3n = 9 + -21
-3n = 9 + -21

Combine like terms: 9 + -21 = -12
-3n = -12

Divide each side by '-3'.
n = 4

Simplifying
n = 4

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