2(b+3)-(7+b)=-2

Solution for 2(b+3)-(7+b)=-2 equation:

Simplifying
2(b + 3) + -1(7 + b) = -2

Reorder the terms:
2(3 + b) + -1(7 + b) = -2
(3 * 2 + b * 2) + -1(7 + b) = -2
(6 + 2b) + -1(7 + b) = -2
6 + 2b + (7 * -1 + b * -1) = -2
6 + 2b + (-7 + -1b) = -2

Reorder the terms:
6 + -7 + 2b + -1b = -2

Combine like terms: 6 + -7 = -1
-1 + 2b + -1b = -2

Combine like terms: 2b + -1b = 1b
-1 + 1b = -2

Solving
-1 + 1b = -2

Solving for variable 'b'.

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

Add '1' to each side of the equation.
-1 + 1 + 1b = -2 + 1

Combine like terms: -1 + 1 = 0
0 + 1b = -2 + 1
1b = -2 + 1

Combine like terms: -2 + 1 = -1
1b = -1

Divide each side by '1'.
b = -1

Simplifying
b = -1