5(a-2)=10(3a+9)

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Solution for 5(a-2)=10(3a+9) equation: 



5(a-2)=10(3a+9)

We move all terms to the left:

5(a-2)-(10(3a+9))=0

We multiply parentheses

5a-(10(3a+9))-10=0



We calculate terms in parentheses: -(10(3a+9)), so:

10(3a+9)

We multiply parentheses

30a+90

Back to the equation:

-(30a+90)



We get rid of parentheses

5a-30a-90-10=0

We add all the numbers together, and all the variables

-25a-100=0

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

-25a=100

a=100/-25

a=-4

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