3a+5=90

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Solution for 3a+5=90 equation: 



3a+5=90

We move all terms to the left:

3a+5-(90)=0

We add all the numbers together, and all the variables

3a-85=0

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

3a=85

a=85/3

a=28+1/3

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