7b+-6(7+-3b)=0

Solution for 7b+-6(7+-3b)=0 equation:

Simplifying
7b + -6(7 + -3b) = 0
7b + (7 * -6 + -3b * -6) = 0
7b + (-42 + 18b) = 0

Reorder the terms:
-42 + 7b + 18b = 0

Combine like terms: 7b + 18b = 25b
-42 + 25b = 0

Solving
-42 + 25b = 0

Solving for variable 'b'.

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

Add '42' to each side of the equation.
-42 + 42 + 25b = 0 + 42

Combine like terms: -42 + 42 = 0
0 + 25b = 0 + 42
25b = 0 + 42

Combine like terms: 0 + 42 = 42
25b = 42

Divide each side by '25'.
b = 1.68

Simplifying
b = 1.68