Mathematical equations written on a blackboard in a classroom close up

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Size: 5453px × 3679px
Location: England, UK
Photo credit: © ICP / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: advanced, blackboard, board, calculations, chalkboard, classroom, close, closeup, education, equation, equations, formula, knowledge, learning, math, mathematics, maths, numbers, science, stem, symbol, symbols, university