WAEC - Mathematics (2007 - No. 50)
For what range of values of x is 4x - 3(2x - 1) > 1?
x > -1
x > 1
x < 1
x < -1
คำอธิบาย
4x - 3(2x - 1) > 1
4x - 6x + 3 > 1
-2x > 1 - 3; 2x > -2
x < \(\frac{-2}{-2}\)
= x < 1
4x - 6x + 3 > 1
-2x > 1 - 3; 2x > -2
x < \(\frac{-2}{-2}\)
= x < 1