7.5=3.2-2.1n

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Solution for 7.5=3.2-2.1n equation: 


Simplifying
7.5 = 3.2 + -2.1n

Solving
7.5 = 3.2 + -2.1n

Solving for variable 'n'.

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

Add '2.1n' to each side of the equation.
7.5 + 2.1n = 3.2 + -2.1n + 2.1n

Combine like terms: -2.1n + 2.1n = 0.0
7.5 + 2.1n = 3.2 + 0.0
7.5 + 2.1n = 3.2

Add '-7.5' to each side of the equation.
7.5 + -7.5 + 2.1n = 3.2 + -7.5

Combine like terms: 7.5 + -7.5 = 0.0
0.0 + 2.1n = 3.2 + -7.5
2.1n = 3.2 + -7.5

Combine like terms: 3.2 + -7.5 = -4.3
2.1n = -4.3

Divide each side by '2.1'.
n = -2.047619048

Simplifying
n = -2.047619048

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