7.5=3.2-21n

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Solution for 7.5=3.2-21n equation: 


Simplifying
7.5 = 3.2 + -21n

Solving
7.5 = 3.2 + -21n

Solving for variable 'n'.

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

Add '21n' to each side of the equation.
7.5 + 21n = 3.2 + -21n + 21n

Combine like terms: -21n + 21n = 0
7.5 + 21n = 3.2 + 0
7.5 + 21n = 3.2

Add '-7.5' to each side of the equation.
7.5 + -7.5 + 21n = 3.2 + -7.5

Combine like terms: 7.5 + -7.5 = 0.0
0.0 + 21n = 3.2 + -7.5
21n = 3.2 + -7.5

Combine like terms: 3.2 + -7.5 = -4.3
21n = -4.3

Divide each side by '21'.
n = -0.2047619048

Simplifying
n = -0.2047619048

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