a+4a=225

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Solution for a+4a=225 equation: 



a+4a=225

We move all terms to the left:

a+4a-(225)=0

We add all the numbers together, and all the variables

5a-225=0

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

5a=225

a=225/5

a=45

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