a+9(a=10)

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Solution for a+9(a=10) equation: 



a+9(a=10)

We move all terms to the left:

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

We multiply parentheses

a+9a-90=0

We add all the numbers together, and all the variables

10a-90=0

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

10a=90

a=90/10

a=9

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