# Replace the Cartesian equation with equivalent polar equations. x = 7

Replace the Cartesian equation with equivalent polar equations. $x=7$

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Tasneem Almond

The given Cartesian equation is $x=7$
$x=r\mathrm{cos}\theta ,y=r\mathrm{sin}\theta$
To replace Cartesian equation with equivalent polar equations as follows,
Cartesian equation $=x=7$.
Equivalent polar equation $=x=r\mathrm{cos}\theta$
Substituting $x=7$,$x=r\mathrm{cos}\theta$
Therefore, the equivalent polar equation is $r\mathrm{cos}\theta =7$