(y-z-b)-(b+y+z)=

Solution for (y-z-b)-(b+y+z)= equation:

Simplifying
(y + -1z + -1b) + -1(b + y + z) = 0

Reorder the terms:
(-1b + y + -1z) + -1(b + y + z) = 0

Remove parenthesis around (-1b + y + -1z)
-1b + y + -1z + -1(b + y + z) = 0
-1b + y + -1z + (b * -1 + y * -1 + z * -1) = 0
-1b + y + -1z + (-1b + -1y + -1z) = 0

Reorder the terms:
-1b + -1b + y + -1y + -1z + -1z = 0

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

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

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

Solving
-2b + -2z = 0

Solving for variable 'b'.

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

Add '2z' to each side of the equation.
-2b + -2z + 2z = 0 + 2z

Combine like terms: -2z + 2z = 0
-2b + 0 = 0 + 2z
-2b = 0 + 2z
Remove the zero:
-2b = 2z

Divide each side by '-2'.
b = -1z

Simplifying
b = -1z