16s - 9(3s-1) = -20s
16s - 27s+9 = -20s
16s-27s+20s = -9
9s=-9
s = -1
Ответ: -1.
16s-27s+9=-20s
16s-27s+20s= -9
s= -1
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Verified answer
16s - 9(3s-1) = -20s
16s - 27s+9 = -20s
16s-27s+20s = -9
9s=-9
s = -1
Ответ: -1.
Verified answer
16s-27s+9=-20s
16s-27s+20s= -9
9s=-9
s= -1