100(2+b)=500

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Solution for 100(2+b)=500 equation: 


Simplifying
100(2 + b) = 500
(2 * 100 + b * 100) = 500
(200 + 100b) = 500

Solving
200 + 100b = 500

Solving for variable 'b'.

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

Add '-200' to each side of the equation.
200 + -200 + 100b = 500 + -200

Combine like terms: 200 + -200 = 0
0 + 100b = 500 + -200
100b = 500 + -200

Combine like terms: 500 + -200 = 300
100b = 300

Divide each side by '100'.
b = 3

Simplifying
b = 3

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