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Cum se rez 238-5(x-1)=193




Răspuns :

238-5x+5=193
-5x=193-238-5
-5x=-50/X (-1)
x =10
238 - 5 x + 5 = 193 => 238 - 193 = 5x - 5 => 45 = 5x - 5 => 5x = 50 => x = 10