Stock photo: simple mathematical formula on a blackboard
Stock photo: simple mathematical formula handwritten with white chalk on a blackboard with strong eraser smudge patterns
Stock photo

#381293 simple mathematical formula on a blackboard by PixelsAway Stock photo PixelsAway

L JPG 3000 x 2000 pixels
10" x 6.7" | 25.4 cm x 17 cm @ 300dpi JPG
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