2 x \(x\)+ \(x\) = 27
3 \(x\) = 27
Vậy \(x\) = 9
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2 x X + X = 4 x 6 + 3
2 x X + X x 1 = 4 x 6 + 3
( 2 + 1 ) x X = 4 x 6 + 3
3 x X = 27
X = 27 : 3
X = 9
Ta suy ra : 4 * 6 = 24
24 + 3 = 27
Ket qua ta tim duoc la : 2 * x + x = 2 * 6 + 15 = 27
2 * x + x = 4 * 6 + 3
x * 3 = 24 + 3
x * 3 = 27
x = 27: 3
x = 9