-2.5b+2+9=21.5

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Solution for -2.5b+2+9=21.5 equation:


Simplifying
-2.5b + 2 + 9 = 21.5

Reorder the terms:
2 + 9 + -2.5b = 21.5

Combine like terms: 2 + 9 = 11
11 + -2.5b = 21.5

Solving
11 + -2.5b = 21.5

Solving for variable 'b'.

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

Add '-11' to each side of the equation.
11 + -11 + -2.5b = 21.5 + -11

Combine like terms: 11 + -11 = 0
0 + -2.5b = 21.5 + -11
-2.5b = 21.5 + -11

Combine like terms: 21.5 + -11 = 10.5
-2.5b = 10.5

Divide each side by '-2.5'.
b = -4.2

Simplifying
b = -4.2

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