a+2a+4a=528

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Solution for a+2a+4a=528 equation: 



a+2a+4a=528

We move all terms to the left:

a+2a+4a-(528)=0

We add all the numbers together, and all the variables

7a-528=0

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

7a=528

a=528/7

a=75+3/7

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