blackboard with solution

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big blackboard with solution on wall

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Size: 4231px × 2911px
Location: Ukraine
Photo credit: © vetkit / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: blackboard, board, bulb, business, communication, concept, desk, floor, home, idea, improvement, information, interior, lamp, lightbulb, marketing, office, research, room, seminar, sign, solution, success, summit, symbol, teaching, wall, wide, wooden