75=30+1/2(9a)

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Solution for 75=30+1/2(9a) equation: 



75=30+1/2(9a)

We move all terms to the left:

75-(30+1/2(9a))=0



Domain of the equation: 29a)!=0

a!=0/1

a!=0

a∈R



We add all the numbers together, and all the variables

-(1/29a+30)+75=0

We get rid of parentheses

-1/29a-30+75=0

We multiply all the terms by the denominator


-30*29a+75*29a-1=0

Wy multiply elements

-870a+2175a-1=0

We add all the numbers together, and all the variables

1305a-1=0

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

1305a=1

a=1/1305

a=1/1305

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