39=18+b+15

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Solution for 39=18+b+15 equation:


Simplifying
39 = 18 + b + 15

Reorder the terms:
39 = 18 + 15 + b

Combine like terms: 18 + 15 = 33
39 = 33 + b

Solving
39 = 33 + 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.
39 + -1b = 33 + b + -1b

Combine like terms: b + -1b = 0
39 + -1b = 33 + 0
39 + -1b = 33

Add '-39' to each side of the equation.
39 + -39 + -1b = 33 + -39

Combine like terms: 39 + -39 = 0
0 + -1b = 33 + -39
-1b = 33 + -39

Combine like terms: 33 + -39 = -6
-1b = -6

Divide each side by '-1'.
b = 6

Simplifying
b = 6

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