5a+7=72

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Solution for 5a+7=72 equation: 



5a+7=72

We move all terms to the left:

5a+7-(72)=0

We add all the numbers together, and all the variables

5a-65=0

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

5a=65

a=65/5

a=13

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