A+7a+a=225

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Solution for A+7a+a=225 equation: 



+7A+A=225

We move all terms to the left:

+7A+A-(225)=0

We add all the numbers together, and all the variables

8A-225=0

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

8A=225

A=225/8

A=28+1/8

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