hand drawn a+b=c concept. scribble on white background a+b=c
Schlüsselwörter
a,
concept,
lesson,
education,
learn,
learning,
positive,
ellipse,
student,
signs,
symbol,
vector,
business,
illustration,
design,
number,
hand-drawn,
drawing,
vignetting,
doodle,
scribble,
free,
brush,
hand,
white background
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