0.12n+0.07(1875-n)=0.09(1875)

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Solution for 0.12n+0.07(1875-n)=0.09(1875) equation:


Simplifying
0.12n + 0.07(1875 + -1n) = 0.09(1875)
0.12n + (1875 * 0.07 + -1n * 0.07) = 0.09(1875)
0.12n + (131.25 + -0.07n) = 0.09(1875)

Reorder the terms:
131.25 + 0.12n + -0.07n = 0.09(1875)

Combine like terms: 0.12n + -0.07n = 0.05n
131.25 + 0.05n = 0.09(1875)

Multiply 0.09 * 1875
131.25 + 0.05n = 168.75

Solving
131.25 + 0.05n = 168.75

Solving for variable 'n'.

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

Add '-131.25' to each side of the equation.
131.25 + -131.25 + 0.05n = 168.75 + -131.25

Combine like terms: 131.25 + -131.25 = 0.00
0.00 + 0.05n = 168.75 + -131.25
0.05n = 168.75 + -131.25

Combine like terms: 168.75 + -131.25 = 37.5
0.05n = 37.5

Divide each side by '0.05'.
n = 750

Simplifying
n = 750

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