2(b-4)=13

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Solution for 2(b-4)=13 equation: 


Simplifying
2(b + -4) = 13

Reorder the terms:
2(-4 + b) = 13
(-4 * 2 + b * 2) = 13
(-8 + 2b) = 13

Solving
-8 + 2b = 13

Solving for variable 'b'.

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

Add '8' to each side of the equation.
-8 + 8 + 2b = 13 + 8

Combine like terms: -8 + 8 = 0
0 + 2b = 13 + 8
2b = 13 + 8

Combine like terms: 13 + 8 = 21
2b = 21

Divide each side by '2'.
b = 10.5

Simplifying
b = 10.5

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