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(35+x)x10 -25 =325
vac roog


Răspuns :

(35+x)x10 -25 =325
( 35+x) x 10 = 325 +25
(35+x) x 10 = 350 
35 + x = 350 :10
35+x = 35
x = 35 - 35
x = 0 
Salut ,


(35 + x) · 10 – 25 = 325 => (35 + x) · 10 = 325 + 25 => (35 + x) · 10 = 350 => 35 + x = 350 : 10 => 35 + x = 35 => x = 35 – 35 => x = 0 => S = {0}