8-3(3+b)=b-9

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Solution for 8-3(3+b)=b-9 equation:


Simplifying
8 + -3(3 + b) = b + -9
8 + (3 * -3 + b * -3) = b + -9
8 + (-9 + -3b) = b + -9

Combine like terms: 8 + -9 = -1
-1 + -3b = b + -9

Reorder the terms:
-1 + -3b = -9 + b

Solving
-1 + -3b = -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.
-1 + -3b + -1b = -9 + b + -1b

Combine like terms: -3b + -1b = -4b
-1 + -4b = -9 + b + -1b

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

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

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

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

Divide each side by '-4'.
b = 2

Simplifying
b = 2

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