45=100-n

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Solution for 45=100-n equation:


Simplifying
45 = 100 + -1n

Solving
45 = 100 + -1n

Solving for variable 'n'.

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

Add 'n' to each side of the equation.
45 + n = 100 + -1n + n

Combine like terms: -1n + n = 0
45 + n = 100 + 0
45 + n = 100

Add '-45' to each side of the equation.
45 + -45 + n = 100 + -45

Combine like terms: 45 + -45 = 0
0 + n = 100 + -45
n = 100 + -45

Combine like terms: 100 + -45 = 55
n = 55

Simplifying
n = 55

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