42=-2b+6

Solution for 42=-2b+6 equation:

Simplifying
42 = -2b + 6

Reorder the terms:
42 = 6 + -2b

Solving
42 = 6 + -2b

Solving for variable 'b'.

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

Add '2b' to each side of the equation.
42 + 2b = 6 + -2b + 2b

Combine like terms: -2b + 2b = 0
42 + 2b = 6 + 0
42 + 2b = 6

Add '-42' to each side of the equation.
42 + -42 + 2b = 6 + -42

Combine like terms: 42 + -42 = 0
0 + 2b = 6 + -42
2b = 6 + -42

Combine like terms: 6 + -42 = -36
2b = -36

Divide each side by '2'.
b = -18

Simplifying
b = -18