300+b=400

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Solution for 300+b=400 equation:


Simplifying
300 + b = 400

Solving
300 + b = 400

Solving for variable 'b'.

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

Add '-300' to each side of the equation.
300 + -300 + b = 400 + -300

Combine like terms: 300 + -300 = 0
0 + b = 400 + -300
b = 400 + -300

Combine like terms: 400 + -300 = 100
b = 100

Simplifying
b = 100

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