2.5b+(b+45)+90+(2b-90)=180

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Solution for 2.5b+(b+45)+90+(2b-90)=180 equation: 



2.5b+(b+45)+90+(2b-90)=180

We move all terms to the left:

2.5b+(b+45)+90+(2b-90)-(180)=0

We add all the numbers together, and all the variables

2.5b+(b+45)+(2b-90)-90=0

We get rid of parentheses

2.5b+b+2b+45-90-90=0

We add all the numbers together, and all the variables

5.5b-135=0

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

5.5b=135

b=135/5.5

b=24+3/5.5

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