[3b+9]-16=5

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Solution for [3b+9]-16=5 equation: 


Simplifying
[3b + 9] + -16 = 5

Reorder the terms:
[9 + 3b] + -16 = 5

Remove brackets around [9 + 3b]
9 + 3b + -16 = 5

Reorder the terms:
9 + -16 + 3b = 5

Combine like terms: 9 + -16 = -7
-7 + 3b = 5

Solving
-7 + 3b = 5

Solving for variable 'b'.

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

Add '7' to each side of the equation.
-7 + 7 + 3b = 5 + 7

Combine like terms: -7 + 7 = 0
0 + 3b = 5 + 7
3b = 5 + 7

Combine like terms: 5 + 7 = 12
3b = 12

Divide each side by '3'.
b = 4

Simplifying
b = 4

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