5b+4b-3=15

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Solution for 5b+4b-3=15 equation: 


Simplifying
5b + 4b + -3 = 15

Reorder the terms:
-3 + 5b + 4b = 15

Combine like terms: 5b + 4b = 9b
-3 + 9b = 15

Solving
-3 + 9b = 15

Solving for variable 'b'.

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

Add '3' to each side of the equation.
-3 + 3 + 9b = 15 + 3

Combine like terms: -3 + 3 = 0
0 + 9b = 15 + 3
9b = 15 + 3

Combine like terms: 15 + 3 = 18
9b = 18

Divide each side by '9'.
b = 2

Simplifying
b = 2

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