-2b+5+7.5b=-28.5

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Solution for -2b+5+7.5b=-28.5 equation:


Simplifying
-2b + 5 + 7.5b = -28.5

Reorder the terms:
5 + -2b + 7.5b = -28.5

Combine like terms: -2b + 7.5b = 5.5b
5 + 5.5b = -28.5

Solving
5 + 5.5b = -28.5

Solving for variable 'b'.

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

Add '-5' to each side of the equation.
5 + -5 + 5.5b = -28.5 + -5

Combine like terms: 5 + -5 = 0
0 + 5.5b = -28.5 + -5
5.5b = -28.5 + -5

Combine like terms: -28.5 + -5 = -33.5
5.5b = -33.5

Divide each side by '5.5'.
b = -6.090909091

Simplifying
b = -6.090909091

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