-9-3(1+7b)=32

Solution for -9-3(1+7b)=32 equation:

Simplifying
-9 + -3(1 + 7b) = 32
-9 + (1 * -3 + 7b * -3) = 32
-9 + (-3 + -21b) = 32

Combine like terms: -9 + -3 = -12
-12 + -21b = 32

Solving
-12 + -21b = 32

Solving for variable 'b'.

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

Add '12' to each side of the equation.
-12 + 12 + -21b = 32 + 12

Combine like terms: -12 + 12 = 0
0 + -21b = 32 + 12
-21b = 32 + 12

Combine like terms: 32 + 12 = 44
-21b = 44

Divide each side by '-21'.
b = -2.095238095

Simplifying
b = -2.095238095