15(7000)+a=20(7000+a)

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Solution for 15(7000)+a=20(7000+a) equation: 



15(7000)+a=20(7000+a)

We move all terms to the left:

15(7000)+a-(20(7000+a))=0

We add all the numbers together, and all the variables

a-(20(a+7000))+157000=0



We calculate terms in parentheses: -(20(a+7000)), so:

20(a+7000)

We multiply parentheses

20a+140000

Back to the equation:

-(20a+140000)



We get rid of parentheses

a-20a-140000+157000=0

We add all the numbers together, and all the variables

-19a+17000=0

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

-19a=-17000

a=-17000/-19

a=894+14/19

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