2(42-1)=(z+2)

Solution for 2(42-1)=(z+2) equation:

Simplifying
2(42 + -1) = (z + 2)

Combine like terms: 42 + -1 = 41
2(41) = (z + 2)

Multiply 2 * 41
82 = (z + 2)

Reorder the terms:
82 = (2 + z)

Remove parenthesis around (2 + z)
82 = 2 + z

Solving
82 = 2 + z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
82 + -1z = 2 + z + -1z

Combine like terms: z + -1z = 0
82 + -1z = 2 + 0
82 + -1z = 2

Add '-82' to each side of the equation.
82 + -82 + -1z = 2 + -82

Combine like terms: 82 + -82 = 0
0 + -1z = 2 + -82
-1z = 2 + -82

Combine like terms: 2 + -82 = -80
-1z = -80

Divide each side by '-1'.
z = 80

Simplifying
z = 80