3n+20=180-(4n-20)

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Solution for 3n+20=180-(4n-20) equation:


Simplifying
3n + 20 = 180 + -1(4n + -20)

Reorder the terms:
20 + 3n = 180 + -1(4n + -20)

Reorder the terms:
20 + 3n = 180 + -1(-20 + 4n)
20 + 3n = 180 + (-20 * -1 + 4n * -1)
20 + 3n = 180 + (20 + -4n)

Combine like terms: 180 + 20 = 200
20 + 3n = 200 + -4n

Solving
20 + 3n = 200 + -4n

Solving for variable 'n'.

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

Add '4n' to each side of the equation.
20 + 3n + 4n = 200 + -4n + 4n

Combine like terms: 3n + 4n = 7n
20 + 7n = 200 + -4n + 4n

Combine like terms: -4n + 4n = 0
20 + 7n = 200 + 0
20 + 7n = 200

Add '-20' to each side of the equation.
20 + -20 + 7n = 200 + -20

Combine like terms: 20 + -20 = 0
0 + 7n = 200 + -20
7n = 200 + -20

Combine like terms: 200 + -20 = 180
7n = 180

Divide each side by '7'.
n = 25.71428571

Simplifying
n = 25.71428571

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