0.3b-21=3.6

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Solution for 0.3b-21=3.6 equation: 


Simplifying
0.3b + -21 = 3.6

Reorder the terms:
-21 + 0.3b = 3.6

Solving
-21 + 0.3b = 3.6

Solving for variable 'b'.

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

Add '21' to each side of the equation.
-21 + 21 + 0.3b = 3.6 + 21

Combine like terms: -21 + 21 = 0
0 + 0.3b = 3.6 + 21
0.3b = 3.6 + 21

Combine like terms: 3.6 + 21 = 24.6
0.3b = 24.6

Divide each side by '0.3'.
b = 82

Simplifying
b = 82

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