45+35-n=30

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Solution for 45+35-n=30 equation: 


Simplifying
45 + 35 + -1n = 30

Combine like terms: 45 + 35 = 80
80 + -1n = 30

Solving
80 + -1n = 30

Solving for variable 'n'.

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

Add '-80' to each side of the equation.
80 + -80 + -1n = 30 + -80

Combine like terms: 80 + -80 = 0
0 + -1n = 30 + -80
-1n = 30 + -80

Combine like terms: 30 + -80 = -50
-1n = -50

Divide each side by '-1'.
n = 50

Simplifying
n = 50

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