2x-5=9

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2x-5=9

Guest 28.08.2016

radix · Answer 1 · 2016-08-28T07:27:38

Guten Morgen !

2x-5=9 | + 5

2x = 14 | . 2

x = 7

Probe : 2*7-5 = 9

Gruß radix !