Full text: Appeltauer, Ignatius: Elementorum matheseos purae pars prima continens algebram

283 
et 
qui reddunt ry   . 
212 — 1. 
438. §. Alia methodus unam incognitam, 
daarum aequationum ope, eliminandi est sequens. 
Si nimirum incognita y eliminanda esset, quae 
ratur ejus valor ex utraque aequatione ; suppo 
natur, primam dare P, alteram y—0, ubi 
rgo P et Q nullum y includunt. Jam quia 
quantitates, quae aequales sunt eidem tertiae, 
etiam inter se aequales sunt, ponatur P—C, in 
qua aequatione nullum y occurrère potest, 
Exemplum; 
Sint duae aequationes: 
Gau — 21 + x — 102. 
78 14. 
102 
et altera 
Ex prima fit   g 
14 +82 
102 — x 14-78r 
Proinde 
haee 
x7 
aequatio 
reducatur, et ordinetur, prodibit 
692 
742 
o. Ex hac aequatione inve. 
25 
25 
69 —281 
nitar e 
proinde vel ry, vel 
50 
106 
X 
Valor incognitae y nunc ex una 
25 
dequationum superiorum, videlicet ex prima 
102— 
determinari potest. Haec nempe dat y:
	        
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