1-7(1-3b)=

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

Simplifying
1 + -7(1 + -3b) = 0
1 + (1 * -7 + -3b * -7) = 0
1 + (-7 + 21b) = 0

Combine like terms: 1 + -7 = -6
-6 + 21b = 0

Solving
-6 + 21b = 0

Solving for variable 'b'.

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

Add '6' to each side of the equation.
-6 + 6 + 21b = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 21b = 0 + 6
21b = 0 + 6

Combine like terms: 0 + 6 = 6
21b = 6

Divide each side by '21'.
b = 0.2857142857

Simplifying
b = 0.2857142857