Question

X=2a-3b,y=3a+4b,z=-a+b then find x+y+z and x+y-z ?

Answer 1

Answer:

$x + y + z \\ 2a - 3b + 3a + 4b -a + b \\ 4a + 2b \\ 2(2a + b) \\ \\ x + y - z \\ 2a - 3b + 3a + 4b + a - b \\ 6a$

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Answer 2

Step-by-step explanation:

sorry i don't know

really sorry