12.3=b-7

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Solution for 12.3=b-7 equation: 


Simplifying
12.3 = b + -7

Reorder the terms:
12.3 = -7 + b

Solving
12.3 = -7 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
12.3 + -1b = -7 + b + -1b

Combine like terms: b + -1b = 0
12.3 + -1b = -7 + 0
12.3 + -1b = -7

Add '-12.3' to each side of the equation.
12.3 + -12.3 + -1b = -7 + -12.3

Combine like terms: 12.3 + -12.3 = 0.0
0.0 + -1b = -7 + -12.3
-1b = -7 + -12.3

Combine like terms: -7 + -12.3 = -19.3
-1b = -19.3

Divide each side by '-1'.
b = 19.3

Simplifying
b = 19.3

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