3x
3x + 9 = -6 3x = -15 x= -5
As an expression it is: 3x+5
3x + 5 < 12
If: 3x+9 = 24 Then: 3x = 24-9 So: 3x = 15 => x = 15/3 The number is 5
Looking at the equation F=ma we can see that if we keep the acceleration constant the Force will vary directly to the mass. So from your problem, if we go from 500 kg to 1500 kg (3x larger) the Force will also have to be 3x larger.
3x
4
3(3x - 5y)(3x + 5y)
3x + 9 = -6 3x = -15 x= -5
It can be: 3x+4
3x + 1
4x=10+3x or 10+3x=4x
3x + 2
3x + 8
As an expression it is: 3x+5
3x + 5 < 12