15a-50=400

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Solution for 15a-50=400 equation: 



15a-50=400

We move all terms to the left:

15a-50-(400)=0

We add all the numbers together, and all the variables

15a-450=0

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

15a=450

a=450/15

a=30

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