4(.80)+2f=5.90

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Solution for 4(.80)+2f=5.90 equation: 


Simplifying
4(0.80) + 2f = 5.90

Multiply 4 * 0.80
3.2 + 2f = 5.90

Solving
3.2 + 2f = 5.90

Solving for variable 'f'.

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

Add '-3.2' to each side of the equation.
3.2 + -3.2 + 2f = 5.90 + -3.2

Combine like terms: 3.2 + -3.2 = 0.0
0.0 + 2f = 5.90 + -3.2
2f = 5.90 + -3.2

Combine like terms: 5.90 + -3.2 = 2.7
2f = 2.7

Divide each side by '2'.
f = 1.35

Simplifying
f = 1.35

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