f-2.1=6.8

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Solution for f-2.1=6.8 equation:


Simplifying
f + -2.1 = 6.8

Reorder the terms:
-2.1 + f = 6.8

Solving
-2.1 + f = 6.8

Solving for variable 'f'.

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

Add '2.1' to each side of the equation.
-2.1 + 2.1 + f = 6.8 + 2.1

Combine like terms: -2.1 + 2.1 = 0.0
0.0 + f = 6.8 + 2.1
f = 6.8 + 2.1

Combine like terms: 6.8 + 2.1 = 8.9
f = 8.9

Simplifying
f = 8.9

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