0.15(90)+0.05n=0.25(90+n)

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Solution for 0.15(90)+0.05n=0.25(90+n) equation: 


Simplifying
0.15(90) + 0.05n = 0.25(90 + n)

Multiply 0.15 * 90
13.5 + 0.05n = 0.25(90 + n)
13.5 + 0.05n = (90 * 0.25 + n * 0.25)
13.5 + 0.05n = (22.5 + 0.25n)

Solving
13.5 + 0.05n = 22.5 + 0.25n

Solving for variable 'n'.

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

Add '-0.25n' to each side of the equation.
13.5 + 0.05n + -0.25n = 22.5 + 0.25n + -0.25n

Combine like terms: 0.05n + -0.25n = -0.2n
13.5 + -0.2n = 22.5 + 0.25n + -0.25n

Combine like terms: 0.25n + -0.25n = 0.00
13.5 + -0.2n = 22.5 + 0.00
13.5 + -0.2n = 22.5

Add '-13.5' to each side of the equation.
13.5 + -13.5 + -0.2n = 22.5 + -13.5

Combine like terms: 13.5 + -13.5 = 0.0
0.0 + -0.2n = 22.5 + -13.5
-0.2n = 22.5 + -13.5

Combine like terms: 22.5 + -13.5 = 9
-0.2n = 9

Divide each side by '-0.2'.
n = -45

Simplifying
n = -45

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