39=3b+9

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Solution for 39=3b+9 equation:


Simplifying
39 = 3b + 9

Reorder the terms:
39 = 9 + 3b

Solving
39 = 9 + 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.
39 + -3b = 9 + 3b + -3b

Combine like terms: 3b + -3b = 0
39 + -3b = 9 + 0
39 + -3b = 9

Add '-39' to each side of the equation.
39 + -39 + -3b = 9 + -39

Combine like terms: 39 + -39 = 0
0 + -3b = 9 + -39
-3b = 9 + -39

Combine like terms: 9 + -39 = -30
-3b = -30

Divide each side by '-3'.
b = 10

Simplifying
b = 10

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