3.5b-20=11.5

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Solution for 3.5b-20=11.5 equation: 


Simplifying
3.5b + -20 = 11.5

Reorder the terms:
-20 + 3.5b = 11.5

Solving
-20 + 3.5b = 11.5

Solving for variable 'b'.

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

Add '20' to each side of the equation.
-20 + 20 + 3.5b = 11.5 + 20

Combine like terms: -20 + 20 = 0
0 + 3.5b = 11.5 + 20
3.5b = 11.5 + 20

Combine like terms: 11.5 + 20 = 31.5
3.5b = 31.5

Divide each side by '3.5'.
b = 9

Simplifying
b = 9

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