Question

Subtract 3x – 4y + 7z from the sum of x – 2y + 3z and -4x + 9y - 11z.

Answer 1

Answer:

6x+11y-15z

Step-by-step explanation:

x-2y+3z+ (-4x +9y-11z)

= -3x +7y-8z then we will subtract this sum by given no

-3x+7y-8z-(3x-4y+7z)= 6x + 11y -15z

therefore the ans is 6x +11y - 15z