(b+45)+90+(2b-90)=540

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Solution for (b+45)+90+(2b-90)=540 equation: 



(b+45)+90+(2b-90)=540

We move all terms to the left:

(b+45)+90+(2b-90)-(540)=0

We add all the numbers together, and all the variables

(b+45)+(2b-90)-450=0

We get rid of parentheses

b+2b+45-90-450=0

We add all the numbers together, and all the variables

3b-495=0

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

3b=495

b=495/3

b=165

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