4.2-0.21n=-2.1

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Solution for 4.2-0.21n=-2.1 equation: 


Simplifying
4.2 + -0.21n = -2.1

Solving
4.2 + -0.21n = -2.1

Solving for variable 'n'.

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

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -0.21n = -2.1 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -0.21n = -2.1 + -4.2
-0.21n = -2.1 + -4.2

Combine like terms: -2.1 + -4.2 = -6.3
-0.21n = -6.3

Divide each side by '-0.21'.
n = 30

Simplifying
n = 30

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