Question

a) a x 14 + 244 = 1 000
b) [(a : 9) * 7 + (102 : 2)] - 49 = 58
c) 8 x a + 573 : 3 - 93 = 210
d) a x 10 : 3 = 4 500
e) 1 + 1 + 1 + 1 + 1 + 1 x 1 x 1 x 1 x 1 = 1 x a
F) 14+ 14 x 2 = 7 x 2 +7 x 2 + 2 x a


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Answer 1

Răspuns:

$a×14+244=1000</p><p>a x 14 = 1000 - 244</p><p>a x 14 = 756</p><p>a = 756 : 14</p><p>a = 54</p><p>[(a÷9)×7+(102÷2)]-49=58</p><p>[(a÷9)×7+(102÷2)] = 58 + 49</p><p>[(a÷9)×7+(102÷2)] = 107</p><p>[(a÷9)×7+51 ] = 107</p><p>(a÷9)×7 = 107 - 51</p><p>(a÷9)×7 = 56</p><p>(a÷9) = 56 : 7</p><p>a÷9 = 8</p><p>a = 8 x 9</p><p>a = 72</p><p>8×a+573÷3-93=210</p><p>8×a+573÷3 = 210 + 93</p><p>8×a+573÷3 = 303</p><p>8 x a + 191 = 303</p><p>8 x a = 303 - 191</p><p>8 x a = 112</p><p>a = 112 : 8</p><p>a = 14</p><p>a×10÷3=4500</p><p>a x 10 = 4500 x 3</p><p>a x 10 = 13500</p><p>a = 13500 : 10</p><p>a = 1350</p><p>1+1+1+1+1+1×1×1×1×1=1×a</p><p>1×1×1×1×1 = 1</p><p>1+1+1+1+1+1 = 1 x a</p><p>6 = 1 x a</p><p>a = 6 : 1</p><p>a = 6</p><p>14+14×2=7×2+2×a      Acesta nu are  necunoscuta . Am presupus ca ar fi ultima .</p><p>14+14×2=7×2+2×a</p><p>14 + 28 = 14 + 2 x a</p><p>42 = 14 + 2 x a</p><p>42 - 14 = 2 x a</p><p>28 = 2 x a</p><p>a = 28 : 2</p><p>a = 14</p><p></p><p>$

sper ca este bine succes!