(5b*2)+(4b*2)=72

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Solution for (5b*2)+(4b*2)=72 equation: 



(5b*2)+(4b*2)=72

We move all terms to the left:

(5b*2)+(4b*2)-(72)=0

We add all the numbers together, and all the variables

(+5b*2)+(+4b*2)-72=0

We get rid of parentheses

5b*2+4b*2-72=0

Wy multiply elements

10b+8b-72=0

We add all the numbers together, and all the variables

18b-72=0

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

18b=72

b=72/18

b=4

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