5n-21=-2n+28

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Solution for 5n-21=-2n+28 equation:


Simplifying
5n + -21 = -2n + 28

Reorder the terms:
-21 + 5n = -2n + 28

Reorder the terms:
-21 + 5n = 28 + -2n

Solving
-21 + 5n = 28 + -2n

Solving for variable 'n'.

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

Add '2n' to each side of the equation.
-21 + 5n + 2n = 28 + -2n + 2n

Combine like terms: 5n + 2n = 7n
-21 + 7n = 28 + -2n + 2n

Combine like terms: -2n + 2n = 0
-21 + 7n = 28 + 0
-21 + 7n = 28

Add '21' to each side of the equation.
-21 + 21 + 7n = 28 + 21

Combine like terms: -21 + 21 = 0
0 + 7n = 28 + 21
7n = 28 + 21

Combine like terms: 28 + 21 = 49
7n = 49

Divide each side by '7'.
n = 7

Simplifying
n = 7

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