exam Maths Puzzle Numerical Ability

1. y=3x-1
If x=-2 what is the value of Y.

2. for the equation y = x-5 find the missing value in each ordered pair
(2, ??)
(-3,??)

3. x-y =3
If x =-6 what is the value of Y

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exam Other Question
find the graphical solution of the inequality 2x<-10 The width of a rectangle is 3 feet more than its length. The perimeter of the rectangle is 42 feet. What is the length and width of the rectangle?