(4.5-b)(5)=2.5

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Solution for (4.5-b)(5)=2.5 equation: 



(4.5-b)(5)=2.5

We move all terms to the left:

(4.5-b)(5)-(2.5)=0

We add all the numbers together, and all the variables

(-1b+4.5)5-(2.5)=0

We add all the numbers together, and all the variables

(-1b+4.5)5-2.5=0

We multiply parentheses

-5b+22.5-2.5=0

We add all the numbers together, and all the variables

-5b+20=0

We move all terms containing b to the left, all other terms to the right

-5b=-20

b=-20/-5

b=+4

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