Calculate v1 in the solution worked out on the site

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In the solution worked out on this site, v1 is calculated, then in the last step, the current is found by dividing v1 by 7 omhs. since v1 is not the voltage across the 7ohm resistor but the voltage across the 9 ohm equivalent resistor shouldn't the current be found by dividing v1 by 9 omhs?

Reference no: EM13285733

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