4.2+7f=2.8

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Solution for 4.2+7f=2.8 equation: 


Simplifying
4.2 + 7f = 2.8

Solving
4.2 + 7f = 2.8

Solving for variable 'f'.

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

Add '-4.2' to each side of the equation.
4.2 + -4.2 + 7f = 2.8 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + 7f = 2.8 + -4.2
7f = 2.8 + -4.2

Combine like terms: 2.8 + -4.2 = -1.4
7f = -1.4

Divide each side by '7'.
f = -0.2

Simplifying
f = -0.2

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