solve(v3=20, (v3-v2)/10+(v1-v2)/110 -v2% 2F5% 2B2 *% 28v3-v2% 29% 2F10% 3D0% 2C-2 *% 28v3-v2% 29% 2F10-v1% 2F100% 2B% 28v2-v1% 29F210% 3D0% 2C% 7Bv1 % 2Cv2% 2Cv3% 7D% 29

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