12.3+b=15.7

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Solution for 12.3+b=15.7 equation: 


Simplifying
12.3 + b = 15.7

Solving
12.3 + b = 15.7

Solving for variable 'b'.

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

Add '-12.3' to each side of the equation.
12.3 + -12.3 + b = 15.7 + -12.3

Combine like terms: 12.3 + -12.3 = 0.0
0.0 + b = 15.7 + -12.3
b = 15.7 + -12.3

Combine like terms: 15.7 + -12.3 = 3.4
b = 3.4

Simplifying
b = 3.4

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