15b-9+4-12b=

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Solution for 15b-9+4-12b= equation:


Simplifying
15b + -9 + 4 + -12b = 0

Reorder the terms:
-9 + 4 + 15b + -12b = 0

Combine like terms: -9 + 4 = -5
-5 + 15b + -12b = 0

Combine like terms: 15b + -12b = 3b
-5 + 3b = 0

Solving
-5 + 3b = 0

Solving for variable 'b'.

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

Add '5' to each side of the equation.
-5 + 5 + 3b = 0 + 5

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

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

Divide each side by '3'.
b = 1.666666667

Simplifying
b = 1.666666667

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