0.2b+9=0.5b+18

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Solution for 0.2b+9=0.5b+18 equation: 


Simplifying
0.2b + 9 = 0.5b + 18

Reorder the terms:
9 + 0.2b = 0.5b + 18

Reorder the terms:
9 + 0.2b = 18 + 0.5b

Solving
9 + 0.2b = 18 + 0.5b

Solving for variable 'b'.

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

Add '-0.5b' to each side of the equation.
9 + 0.2b + -0.5b = 18 + 0.5b + -0.5b

Combine like terms: 0.2b + -0.5b = -0.3b
9 + -0.3b = 18 + 0.5b + -0.5b

Combine like terms: 0.5b + -0.5b = 0.0
9 + -0.3b = 18 + 0.0
9 + -0.3b = 18

Add '-9' to each side of the equation.
9 + -9 + -0.3b = 18 + -9

Combine like terms: 9 + -9 = 0
0 + -0.3b = 18 + -9
-0.3b = 18 + -9

Combine like terms: 18 + -9 = 9
-0.3b = 9

Divide each side by '-0.3'.
b = -30

Simplifying
b = -30

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