2.3=f-3.9

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Solution for 2.3=f-3.9 equation:


Simplifying
2.3 = f + -3.9

Reorder the terms:
2.3 = -3.9 + f

Solving
2.3 = -3.9 + f

Solving for variable 'f'.

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

Add '-1f' to each side of the equation.
2.3 + -1f = -3.9 + f + -1f

Combine like terms: f + -1f = 0
2.3 + -1f = -3.9 + 0
2.3 + -1f = -3.9

Add '-2.3' to each side of the equation.
2.3 + -2.3 + -1f = -3.9 + -2.3

Combine like terms: 2.3 + -2.3 = 0.0
0.0 + -1f = -3.9 + -2.3
-1f = -3.9 + -2.3

Combine like terms: -3.9 + -2.3 = -6.2
-1f = -6.2

Divide each side by '-1'.
f = 6.2

Simplifying
f = 6.2

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