Question

Buna dupamasa
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I-mi trebuie exercitiul acesta de la culegerea niculescu clasa 6

Answer 1

18x/15 = x/5 <=> 18x/15 = ³⁾x/5 <=> 18x = 3x <=> 18x-3x = 0 => 15x = 0 => x =0

sau 18x*5 = 15x <=> 90x = 15x => 90x-15x = 0 <=> 75x = 0 => x = 0

sau 18x*5 = 15x <=> 90x = 15x I : 15 <=> 6x = x => 5x = 0 => x = 0

Answer 2

18x•5=15x
90x= 15 x
90-15x=0=>75x=0=>x=0