8-(4+b)=b-9

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Solution for 8-(4+b)=b-9 equation:


Simplifying
8 + -1(4 + b) = b + -9
8 + (4 * -1 + b * -1) = b + -9
8 + (-4 + -1b) = b + -9

Combine like terms: 8 + -4 = 4
4 + -1b = b + -9

Reorder the terms:
4 + -1b = -9 + b

Solving
4 + -1b = -9 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
4 + -1b + -1b = -9 + b + -1b

Combine like terms: -1b + -1b = -2b
4 + -2b = -9 + b + -1b

Combine like terms: b + -1b = 0
4 + -2b = -9 + 0
4 + -2b = -9

Add '-4' to each side of the equation.
4 + -4 + -2b = -9 + -4

Combine like terms: 4 + -4 = 0
0 + -2b = -9 + -4
-2b = -9 + -4

Combine like terms: -9 + -4 = -13
-2b = -13

Divide each side by '-2'.
b = 6.5

Simplifying
b = 6.5

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