maths ~~~~~~

1. x + 3 > 2
X = ______

2. x - 2 > 3
x = ______

3.Write each of the following in algebraic form :
(a) The sum of x and y ( x < y ) is multiplied by their difference .
(b) The square of the difference between x and 3y ( x > 3y ) .

4. 2 ( x + 1 ) > 4
X = _____

5. 7x - 9 > 9x + 7
x = ______

6.Danny has 14 model cars .
(a) As his mother is worried that he will spend too much money on model cars , she proposes the following to Danny :
" The maximum number of model cars that Danny can have is 20 . "
Let the total number of model cars that Danny can have be x .
( i ) Write an inequality to represent this situation .
( ii ) Hence find at most how many more model cars he can have .

(b) However , he makes the following counter - proposal :
" Apart from the condition stated above , I would like the total number of model cars to be greater than 17 . "
( i ) How many model cars can he have under this situation ?
( ii ) Hence find at least how many more model cars he can have .