a-43+a+7=30

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Solution for a-43+a+7=30 equation: 



a-43+a+7=30

We move all terms to the left:

a-43+a+7-(30)=0

We add all the numbers together, and all the variables

2a-66=0

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

2a=66

a=66/2

a=33

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