5(a+9)=4(a+7)

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Solution for 5(a+9)=4(a+7) equation: 



5(a+9)=4(a+7)

We move all terms to the left:

5(a+9)-(4(a+7))=0

We multiply parentheses

5a-(4(a+7))+45=0



We calculate terms in parentheses: -(4(a+7)), so:

4(a+7)

We multiply parentheses

4a+28

Back to the equation:

-(4a+28)



We get rid of parentheses

5a-4a-28+45=0

We add all the numbers together, and all the variables

a+17=0

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

a=-17

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