Question

ajutooor dau coroana

Answer 1

Fie a, b, c si d numerele
a+b+c+d = 244

a+6 = b-3 = c:4 = d×2

a+6 = b-3
b = a+9

c:4 = d×2
c = d×8

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a + a+9 + d×8 + d = 244
2×a + 9 + d×9 = 244
2×a + 9×d = 235
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a+6 = 2×d
a = 2×d - 6

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2×a + 9×d = 235
2×(2×d - 6) + 9×d = 235
2×2×d - 2×6 + 9×d = 235
4×d - 12 + 9×d = 235
13×d - 12 = 235
13×d = 247
d = 19
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c = 8×d = 8×19 = 152

a = 2×d-6 = 2×19-6 = 38-6 = 32

b = a+9 = 32+9 = 41