Răspuns:
Explicație pas cu pas:
a) 5400=x·80+40 ⇒ 5400-40=80x ⇒ 5360=80x ⇒x=67
b)n×60:30=100 ⇒ n×2=100 ⇒n=50
c) 20 200:20=1010
20 200:2020=100
5. a) 5400:x=80 rest 40 => 80x+40=5400 =>
80x=5400-40 => 80x=5360 => x=5360÷80
x=67
b) a×60÷30=100 => a×60=100×30 => a×60=300
a=300÷60=> a=50
c) 20200÷20=1010
20200÷x=101×2=>20200÷x=202
x=20200÷202=> x=100
