5b-4-12b-9=

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Solution for 5b-4-12b-9= equation:


Simplifying
5b + -4 + -12b + -9 = 0

Reorder the terms:
-4 + -9 + 5b + -12b = 0

Combine like terms: -4 + -9 = -13
-13 + 5b + -12b = 0

Combine like terms: 5b + -12b = -7b
-13 + -7b = 0

Solving
-13 + -7b = 0

Solving for variable 'b'.

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

Add '13' to each side of the equation.
-13 + 13 + -7b = 0 + 13

Combine like terms: -13 + 13 = 0
0 + -7b = 0 + 13
-7b = 0 + 13

Combine like terms: 0 + 13 = 13
-7b = 13

Divide each side by '-7'.
b = -1.857142857

Simplifying
b = -1.857142857

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