0.4(2z+4)=-17

Solution for 0.4(2z+4)=-17 equation:

Simplifying
0.4(2z + 4) = -17

Reorder the terms:
0.4(4 + 2z) = -17
(4 * 0.4 + 2z * 0.4) = -17
(1.6 + 0.8z) = -17

Solving
1.6 + 0.8z = -17

Solving for variable 'z'.

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

Add '-1.6' to each side of the equation.
1.6 + -1.6 + 0.8z = -17 + -1.6

Combine like terms: 1.6 + -1.6 = 0.0
0.0 + 0.8z = -17 + -1.6
0.8z = -17 + -1.6

Combine like terms: -17 + -1.6 = -18.6
0.8z = -18.6

Divide each side by '0.8'.
z = -23.25

Simplifying
z = -23.25