0.3=0.5f+0.7

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Solution for 0.3=0.5f+0.7 equation: 


Simplifying
0.3 = 0.5f + 0.7

Reorder the terms:
0.3 = 0.7 + 0.5f

Solving
0.3 = 0.7 + 0.5f

Solving for variable 'f'.

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

Add '-0.5f' to each side of the equation.
0.3 + -0.5f = 0.7 + 0.5f + -0.5f

Combine like terms: 0.5f + -0.5f = 0.0
0.3 + -0.5f = 0.7 + 0.0
0.3 + -0.5f = 0.7

Add '-0.3' to each side of the equation.
0.3 + -0.3 + -0.5f = 0.7 + -0.3

Combine like terms: 0.3 + -0.3 = 0.0
0.0 + -0.5f = 0.7 + -0.3
-0.5f = 0.7 + -0.3

Combine like terms: 0.7 + -0.3 = 0.4
-0.5f = 0.4

Divide each side by '-0.5'.
f = -0.8

Simplifying
f = -0.8

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