WAEC - Mathematics (2001 - No. 17)
If \(\frac{y-3}{2}<\frac{2y-1}{3}\), which of the following is true?
y > 7
y < -7
y > -7
y < 7
คำอธิบาย
\(\frac{y - 3}{2} < \frac{2y - 1}{3}\)
\(3(y - 3) < 2(2y - 1)\)
\(3y - 9 < 4y - 2\)
\(3y - 4y < -2 + 9\)
\(-y < 7\)
\(y > -7\)