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OK, SO

15x-3 = 2x+1

15x - 3 + 3 = 2x + 1 + 3 (add three to each side)

15x=2x+4 (simplIfy)

15x-2x=2x-2x+4 (subtract 2x from each side)

13x=4 (simplify)

(13x/13)=(4/13) (divide each side by 13)

x≈0.30769231

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