13b-9=3b+4

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Solution for 13b-9=3b+4 equation:


Simplifying
13b + -9 = 3b + 4

Reorder the terms:
-9 + 13b = 3b + 4

Reorder the terms:
-9 + 13b = 4 + 3b

Solving
-9 + 13b = 4 + 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.
-9 + 13b + -3b = 4 + 3b + -3b

Combine like terms: 13b + -3b = 10b
-9 + 10b = 4 + 3b + -3b

Combine like terms: 3b + -3b = 0
-9 + 10b = 4 + 0
-9 + 10b = 4

Add '9' to each side of the equation.
-9 + 9 + 10b = 4 + 9

Combine like terms: -9 + 9 = 0
0 + 10b = 4 + 9
10b = 4 + 9

Combine like terms: 4 + 9 = 13
10b = 13

Divide each side by '10'.
b = 1.3

Simplifying
b = 1.3

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