-20.9=b-3.4

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Solution for -20.9=b-3.4 equation:


Simplifying
-20.9 = b + -3.4

Reorder the terms:
-20.9 = -3.4 + b

Solving
-20.9 = -3.4 + 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.
-20.9 + -1b = -3.4 + b + -1b

Combine like terms: b + -1b = 0
-20.9 + -1b = -3.4 + 0
-20.9 + -1b = -3.4

Add '20.9' to each side of the equation.
-20.9 + 20.9 + -1b = -3.4 + 20.9

Combine like terms: -20.9 + 20.9 = 0.0
0.0 + -1b = -3.4 + 20.9
-1b = -3.4 + 20.9

Combine like terms: -3.4 + 20.9 = 17.5
-1b = 17.5

Divide each side by '-1'.
b = -17.5

Simplifying
b = -17.5

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