0.4f+1.1=8.3-f

Solution for 0.4f+1.1=8.3-f equation:

Simplifying
0.4f + 1.1 = 8.3 + -1f

Reorder the terms:
1.1 + 0.4f = 8.3 + -1f

Solving
1.1 + 0.4f = 8.3 + -1f

Solving for variable 'f'.

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

Add 'f' to each side of the equation.
1.1 + 0.4f + f = 8.3 + -1f + f

Combine like terms: 0.4f + f = 1.4f
1.1 + 1.4f = 8.3 + -1f + f

Combine like terms: -1f + f = 0
1.1 + 1.4f = 8.3 + 0
1.1 + 1.4f = 8.3

Add '-1.1' to each side of the equation.
1.1 + -1.1 + 1.4f = 8.3 + -1.1

Combine like terms: 1.1 + -1.1 = 0.0
0.0 + 1.4f = 8.3 + -1.1
1.4f = 8.3 + -1.1

Combine like terms: 8.3 + -1.1 = 7.2
1.4f = 7.2

Divide each side by '1.4'.
f = 5.142857143

Simplifying
f = 5.142857143