3n+20=7n

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Solution for 3n+20=7n equation:


Simplifying
3n + 20 = 7n

Reorder the terms:
20 + 3n = 7n

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

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

Combine like terms: 7n + -7n = 0
20 + -4n = 0

Add '-20' to each side of the equation.
20 + -20 + -4n = 0 + -20

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

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

Divide each side by '-4'.
n = 5

Simplifying
n = 5

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