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Answer 1 · 2018-01-21T12:12:07

See below

Use the mirror formula to find the image distance

u = -20 cm
f = -30 cm

$1/f = 1/u + 1/v$

$1/-30 = 1/-20 + 1/v$

$-1/30 = -1/20 + 1/v$

$-1/30 + 1/20 = 1/v$

$(-2 + 3)/60 = 1/v$

$1/60 = 1/v$

$60 cm = v$

Thus, the image is formed on the right side of the mirror at the distance of 60 cm from the mirror.