-7n-42+3n=-7n-39

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Solution for -7n-42+3n=-7n-39 equation:


Simplifying
-7n + -42 + 3n = -7n + -39

Reorder the terms:
-42 + -7n + 3n = -7n + -39

Combine like terms: -7n + 3n = -4n
-42 + -4n = -7n + -39

Reorder the terms:
-42 + -4n = -39 + -7n

Solving
-42 + -4n = -39 + -7n

Solving for variable 'n'.

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

Add '7n' to each side of the equation.
-42 + -4n + 7n = -39 + -7n + 7n

Combine like terms: -4n + 7n = 3n
-42 + 3n = -39 + -7n + 7n

Combine like terms: -7n + 7n = 0
-42 + 3n = -39 + 0
-42 + 3n = -39

Add '42' to each side of the equation.
-42 + 42 + 3n = -39 + 42

Combine like terms: -42 + 42 = 0
0 + 3n = -39 + 42
3n = -39 + 42

Combine like terms: -39 + 42 = 3
3n = 3

Divide each side by '3'.
n = 1

Simplifying
n = 1

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