« It Is not certain just what the terms al-jabr and muqabalah mean, but the usual interpretation is similar to that implied in the translation above. The word al-jabr presumably meant something like "restoration" or "completion" and seems to refer to the transposition ofwel subtracted terms to the other side https://sparktv.net/post/277836_https-foliemolie-nl-https-foliemolie-nl-zodra-je-nog-nimmer-eerder-folie-hebt-aa.html