Yes, 3 times 350 grams is 1,050 grams, which is more than 1 kilogram (1,000 grams). To clarify, 3 x 350g = 1,050g, and since 1,050g > 1,000g, it confirms that 3x 350g is indeed more than 1 kilogram.
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
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
As an expression it is: 3x+5
3x + 8
3x + 2
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 + 5 < 12