4b+4(b-8)=42

Solution for 4b+4(b-8)=42 equation:

Simplifying
4b + 4(b + -8) = 42

Reorder the terms:
4b + 4(-8 + b) = 42
4b + (-8 * 4 + b * 4) = 42
4b + (-32 + 4b) = 42

Reorder the terms:
-32 + 4b + 4b = 42

Combine like terms: 4b + 4b = 8b
-32 + 8b = 42

Solving
-32 + 8b = 42

Solving for variable 'b'.

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

Add '32' to each side of the equation.
-32 + 32 + 8b = 42 + 32

Combine like terms: -32 + 32 = 0
0 + 8b = 42 + 32
8b = 42 + 32

Combine like terms: 42 + 32 = 74
8b = 74

Divide each side by '8'.
b = 9.25

Simplifying
b = 9.25