1.8a-0.3(a+5)=0.5(a+9)

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Solution for 1.8a-0.3(a+5)=0.5(a+9) equation: 



1.8a-0.3(a+5)=0.5(a+9)

We move all terms to the left:

1.8a-0.3(a+5)-(0.5(a+9))=0

We multiply parentheses

1.8a-0.3a-(0.5(a+9))-1.5=0



We calculate terms in parentheses: -(0.5(a+9)), so:

0.5(a+9)

We multiply parentheses

0.5a+4.5

Back to the equation:

-(0.5a+4.5)



We add all the numbers together, and all the variables

1.5a-(0.5a+4.5)-1.5=0

We get rid of parentheses

1.5a-0.5a-4.5-1.5=0

We add all the numbers together, and all the variables

a-6=0

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

a=6

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