10i-1=19

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Solution for 10i-1=19 equation:



10i-1=19
We move all terms to the left:
10i-1-(19)=0
We add all the numbers together, and all the variables
10i-20=0
We move all terms containing i to the left, all other terms to the right
10i=20
i=20/10
i=2

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