10a=7(a+30)

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Solution for 10a=7(a+30) equation: 



10a=7(a+30)

We move all terms to the left:

10a-(7(a+30))=0



We calculate terms in parentheses: -(7(a+30)), so:

7(a+30)

We multiply parentheses

7a+210

Back to the equation:

-(7a+210)



We get rid of parentheses

10a-7a-210=0

We add all the numbers together, and all the variables

3a-210=0

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

3a=210

a=210/3

a=70

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