0.12n+0.07(2250-n)=0.09(2250)

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Solution for 0.12n+0.07(2250-n)=0.09(2250) equation: 


Simplifying
0.12n + 0.07(2250 + -1n) = 0.09(2250)
0.12n + (2250 * 0.07 + -1n * 0.07) = 0.09(2250)
0.12n + (157.5 + -0.07n) = 0.09(2250)

Reorder the terms:
157.5 + 0.12n + -0.07n = 0.09(2250)

Combine like terms: 0.12n + -0.07n = 0.05n
157.5 + 0.05n = 0.09(2250)

Multiply 0.09 * 2250
157.5 + 0.05n = 202.5

Solving
157.5 + 0.05n = 202.5

Solving for variable 'n'.

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

Add '-157.5' to each side of the equation.
157.5 + -157.5 + 0.05n = 202.5 + -157.5

Combine like terms: 157.5 + -157.5 = 0.0
0.0 + 0.05n = 202.5 + -157.5
0.05n = 202.5 + -157.5

Combine like terms: 202.5 + -157.5 = 45
0.05n = 45

Divide each side by '0.05'.
n = 900

Simplifying
n = 900

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