7n-4+9n=28

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Solution for 7n-4+9n=28 equation: 


Simplifying
7n + -4 + 9n = 28

Reorder the terms:
-4 + 7n + 9n = 28

Combine like terms: 7n + 9n = 16n
-4 + 16n = 28

Solving
-4 + 16n = 28

Solving for variable 'n'.

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

Add '4' to each side of the equation.
-4 + 4 + 16n = 28 + 4

Combine like terms: -4 + 4 = 0
0 + 16n = 28 + 4
16n = 28 + 4

Combine like terms: 28 + 4 = 32
16n = 32

Divide each side by '16'.
n = 2

Simplifying
n = 2

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