Question

(1+2+3+.... +100):x=101
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Answer 1

$(1+2+3+.... +100):x=101$

$\frac{100 \times 101}{2} :x=101$

$50 \times 101 \div x = 101$

$5050 \div x = 101$

$x = 5050 \div 101 = 50$

Answer 2

Răspuns:

1+2+3+...+100=(100*101):2=50*101

50*101:x=101

5050:x=101

x=50

Succes!