7^x=7^3x-28

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Solution for 7^x=7^3x-28 equation: 



7^x=7^3x-28

We move all terms to the left:

7^x-(7^3x-28)=0

We get rid of parentheses

7^x-7^3x+28=0

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

7^x-7^3x=-28

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