1+3n=7n+9

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Solution for 1+3n=7n+9 equation:


Simplifying
1 + 3n = 7n + 9

Reorder the terms:
1 + 3n = 9 + 7n

Solving
1 + 3n = 9 + 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.
1 + 3n + -7n = 9 + 7n + -7n

Combine like terms: 3n + -7n = -4n
1 + -4n = 9 + 7n + -7n

Combine like terms: 7n + -7n = 0
1 + -4n = 9 + 0
1 + -4n = 9

Add '-1' to each side of the equation.
1 + -1 + -4n = 9 + -1

Combine like terms: 1 + -1 = 0
0 + -4n = 9 + -1
-4n = 9 + -1

Combine like terms: 9 + -1 = 8
-4n = 8

Divide each side by '-4'.
n = -2

Simplifying
n = -2

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