5n-21=-42+2n

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Solution for 5n-21=-42+2n equation:


Simplifying
5n + -21 = -42 + 2n

Reorder the terms:
-21 + 5n = -42 + 2n

Solving
-21 + 5n = -42 + 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 = -42 + 2n + -2n

Combine like terms: 5n + -2n = 3n
-21 + 3n = -42 + 2n + -2n

Combine like terms: 2n + -2n = 0
-21 + 3n = -42 + 0
-21 + 3n = -42

Add '21' to each side of the equation.
-21 + 21 + 3n = -42 + 21

Combine like terms: -21 + 21 = 0
0 + 3n = -42 + 21
3n = -42 + 21

Combine like terms: -42 + 21 = -21
3n = -21

Divide each side by '3'.
n = -7

Simplifying
n = -7

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