42=2(x+1)-1

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

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

Reorder the terms:
42 = 2(1 + x) + -1
42 = (1 * 2 + x * 2) + -1
42 = (2 + 2x) + -1

Reorder the terms:
42 = 2 + -1 + 2x

Combine like terms: 2 + -1 = 1
42 = 1 + 2x

Solving
42 = 1 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
42 + -2x = 1 + 2x + -2x

Combine like terms: 2x + -2x = 0
42 + -2x = 1 + 0
42 + -2x = 1

Add '-42' to each side of the equation.
42 + -42 + -2x = 1 + -42

Combine like terms: 42 + -42 = 0
0 + -2x = 1 + -42
-2x = 1 + -42

Combine like terms: 1 + -42 = -41
-2x = -41

Divide each side by '-2'.
x = 20.5

Simplifying
x = 20.5