4a+20+7a-6=90

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Solution for 4a+20+7a-6=90 equation: 



4a+20+7a-6=90

We move all terms to the left:

4a+20+7a-6-(90)=0

We add all the numbers together, and all the variables

11a-76=0

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

11a=76

a=76/11

a=6+10/11

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