Can you solve this

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Can you solve this illustration

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Size: 3532px × 5000px
Location:
Photo credit: © Matthew Cole / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: art, background, clip, clip-art, clipart, design, drawing, education, equation, graphic, illustration, image, knowledge, learning, lecture, lesson, math, mathematics, number, picture, problem, school, solution, solve, solving, template, vector, worksheet