3-0.4(5-2x)=5.6

Solution for 3-0.4(5-2x)=5.6 equation:

Simplifying
3 + -0.4(5 + -2x) = 5.6
3 + (5 * -0.4 + -2x * -0.4) = 5.6
3 + (-2 + 0.8x) = 5.6

Combine like terms: 3 + -2 = 1
1 + 0.8x = 5.6

Solving
1 + 0.8x = 5.6

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 0.8x = 5.6 + -1

Combine like terms: 1 + -1 = 0
0 + 0.8x = 5.6 + -1
0.8x = 5.6 + -1

Combine like terms: 5.6 + -1 = 4.6
0.8x = 4.6

Divide each side by '0.8'.
x = 5.75

Simplifying
x = 5.75