4(1+5b)+7(-5+8b)=45

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Solution for 4(1+5b)+7(-5+8b)=45 equation: 



4(1+5b)+7(-5+8b)=45

We move all terms to the left:

4(1+5b)+7(-5+8b)-(45)=0

We add all the numbers together, and all the variables

4(5b+1)+7(8b-5)-45=0

We multiply parentheses

20b+56b+4-35-45=0

We add all the numbers together, and all the variables

76b-76=0

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

76b=76

b=76/76

b=1

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