By how much is 2x - 3y + 4z greater than 2x + 5y - 6z + 2?

By how much is 5x-3y+4z greater than 5x-2y+2z+5

How much is x-2y+3z greater than 3x+5y-7?

How much is x-2y+3z greater than 3x+5y-7?

By how much is 4y^2-3x^2+9 greater than 2y^2-6x^2-6

The planes 2x - y + 4z = 3 and 5x - 2.5y + 10z = 6 are :

How much less than x - 2y + 3z is 2x - 4y -z?

Add 2x - 3y + z , 5y - x + 7z and 3x - y - 6z.

The equation of the plane contaning the line 2x -5y + z= 3, x + y + 4z =5 and parallel to the plane, x + 3y + 6z = 1 is

Subtract the sum of 5x - 4y + 6z and -8x + y - 2z from the sum of 12x - y + 3z and -3x + 5y - 8z