Question

12) If A = 2x – 3y +z, B = x + 7y - 6z and C = 3x – 2y + 9z then find
A+B - C.​

Answer 1

Answer:

6y-14z

Step-by-step explanation:

A + B-C

=2x – 3y +z + x + 7y - 6z-3x + 2y - 9z

=6y-14z

Answer 2

Step-by-step explanation:

A+B = (2x-3y+z)+(x+7y-6z) = 3x+4y-5z

Now, A+B-C = (A+B)-C = (3x+4y-5z)-(3x-2y+9z)

A+B-C = 6y-14z

Hope you got the answer. Please mark my answer as brainliest.