Duplicate of Duplicate of Algebra Year 8

If x=4 and y=7, What is the value of: 2x - y

If x= -4, y= -2 w= 3 What is the value of: 2( 2w + y - 2x)

If x= -4, y= -2 w= 3 What is the value of: 3w - 4x + 2y

If x= -4 and y= -2, What is the value of: -2x - 4y - 20

What is the coefficient of y in the following? 2x + 7 - y

What is the constant in the following expression? 2x + 4Y - 7

How many terms in the following expression? 2x + 4y + 7

What expression best represents: I have a number and multiply it by 4

If x=2, 4x + 12

If x= -4 and y= -2, What is the value of: x(2x - 2y)