7n-4=3n-20

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Solution for 7n-4=3n-20 equation:


Simplifying
7n + -4 = 3n + -20

Reorder the terms:
-4 + 7n = 3n + -20

Reorder the terms:
-4 + 7n = -20 + 3n

Solving
-4 + 7n = -20 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
-4 + 7n + -3n = -20 + 3n + -3n

Combine like terms: 7n + -3n = 4n
-4 + 4n = -20 + 3n + -3n

Combine like terms: 3n + -3n = 0
-4 + 4n = -20 + 0
-4 + 4n = -20

Add '4' to each side of the equation.
-4 + 4 + 4n = -20 + 4

Combine like terms: -4 + 4 = 0
0 + 4n = -20 + 4
4n = -20 + 4

Combine like terms: -20 + 4 = -16
4n = -16

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

Simplifying
n = -4

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