30n+70=20n+100

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Solution for 30n+70=20n+100 equation:


Simplifying
30n + 70 = 20n + 100

Reorder the terms:
70 + 30n = 20n + 100

Reorder the terms:
70 + 30n = 100 + 20n

Solving
70 + 30n = 100 + 20n

Solving for variable 'n'.

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

Add '-20n' to each side of the equation.
70 + 30n + -20n = 100 + 20n + -20n

Combine like terms: 30n + -20n = 10n
70 + 10n = 100 + 20n + -20n

Combine like terms: 20n + -20n = 0
70 + 10n = 100 + 0
70 + 10n = 100

Add '-70' to each side of the equation.
70 + -70 + 10n = 100 + -70

Combine like terms: 70 + -70 = 0
0 + 10n = 100 + -70
10n = 100 + -70

Combine like terms: 100 + -70 = 30
10n = 30

Divide each side by '10'.
n = 3

Simplifying
n = 3

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