3b+9=9+-3b

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Solution for 3b+9=9+-3b equation:


Simplifying
3b + 9 = 9 + -3b

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

Add '-9' to each side of the equation.
9 + -9 + 3b = 9 + -9 + -3b

Combine like terms: 9 + -9 = 0
0 + 3b = 9 + -9 + -3b
3b = 9 + -9 + -3b

Combine like terms: 9 + -9 = 0
3b = 0 + -3b
3b = -3b

Solving
3b = -3b

Solving for variable 'b'.

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

Add '3b' to each side of the equation.
3b + 3b = -3b + 3b

Combine like terms: 3b + 3b = 6b
6b = -3b + 3b

Combine like terms: -3b + 3b = 0
6b = 0

Divide each side by '6'.
b = 0

Simplifying
b = 0

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