1.5+30=2b-9

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Solution for 1.5+30=2b-9 equation: 


Simplifying
1.5 + 30 = 2b + -9

Combine like terms: 1.5 + 30 = 31.5
31.5 = 2b + -9

Reorder the terms:
31.5 = -9 + 2b

Solving
31.5 = -9 + 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
31.5 + -2b = -9 + 2b + -2b

Combine like terms: 2b + -2b = 0
31.5 + -2b = -9 + 0
31.5 + -2b = -9

Add '-31.5' to each side of the equation.
31.5 + -31.5 + -2b = -9 + -31.5

Combine like terms: 31.5 + -31.5 = 0.0
0.0 + -2b = -9 + -31.5
-2b = -9 + -31.5

Combine like terms: -9 + -31.5 = -40.5
-2b = -40.5

Divide each side by '-2'.
b = 20.25

Simplifying
b = 20.25

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