7i-20=2i+15

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Solution for 7i-20=2i+15 equation: 



7i-20=2i+15

We move all terms to the left:

7i-20-(2i+15)=0

We get rid of parentheses

7i-2i-15-20=0

We add all the numbers together, and all the variables

5i-35=0

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

5i=35

i=35/5

i=7

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