Question

Add the followinf expresion
b. x- 3y + 4z , y – 2x- 8z ,5x – 2y – 3z ​

Answer 1

4x - 4y - 7z

Explanation:

x - 3y + 4z + y - 2x - 8z + 5x - 2y - 3z =

(x - 2x + 5x) + (y - 3y - 2y) + (4z - 8z - 3z) =

4x + (- 4y) + (-7z) =

4x - 4y - 7z <===