7x-4*7^x-2=315

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Solution for 7x-4*7^x-2=315 equation: 



7x-4*7^x-2=315

We move all terms to the left:

7x-4*7^x-2-(315)=0

We add all the numbers together, and all the variables

7x-4*7^x-317=0

Wy multiply elements

7x-28x-317=0

We add all the numbers together, and all the variables

-21x-317=0

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

-21x=317

x=317/-21

x=-15+2/21

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