Question

If A=2x-3y+4z,B=5x-6y+7z,C=-x-y+z, Find A+ B+C

Answer 1

Answer:

8x-10y+12z

Step-by-step explanation:

.2x-3y+4z+5x-6y+7z+x-y+z = first add 2x+5x+ x=8x second add 3y+ 6y+y =10y third add 4z+7z+z=12z Therefore 8x-10y-12z