8=2(z+2.6)

Solution for 8=2(z+2.6) equation:

Simplifying
8 = 2(z + 2.6)

Reorder the terms:
8 = 2(2.6 + z)
8 = (2.6 * 2 + z * 2)
8 = (5.2 + 2z)

Solving
8 = 5.2 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
8 + -2z = 5.2 + 2z + -2z

Combine like terms: 2z + -2z = 0
8 + -2z = 5.2 + 0
8 + -2z = 5.2

Add '-8' to each side of the equation.
8 + -8 + -2z = 5.2 + -8

Combine like terms: 8 + -8 = 0
0 + -2z = 5.2 + -8
-2z = 5.2 + -8

Combine like terms: 5.2 + -8 = -2.8
-2z = -2.8

Divide each side by '-2'.
z = 1.4

Simplifying
z = 1.4