9n-13=4n+7

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Solution for 9n-13=4n+7 equation:


Simplifying
9n + -13 = 4n + 7

Reorder the terms:
-13 + 9n = 4n + 7

Reorder the terms:
-13 + 9n = 7 + 4n

Solving
-13 + 9n = 7 + 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.
-13 + 9n + -4n = 7 + 4n + -4n

Combine like terms: 9n + -4n = 5n
-13 + 5n = 7 + 4n + -4n

Combine like terms: 4n + -4n = 0
-13 + 5n = 7 + 0
-13 + 5n = 7

Add '13' to each side of the equation.
-13 + 13 + 5n = 7 + 13

Combine like terms: -13 + 13 = 0
0 + 5n = 7 + 13
5n = 7 + 13

Combine like terms: 7 + 13 = 20
5n = 20

Divide each side by '5'.
n = 4

Simplifying
n = 4

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