Question

3x+8y+7z, -2x+3y+4z and -4x+3y+6z​

Answer 1

Answer:

In algebra we can add and subtract only like terms(terms with same variable)

⇒ex: 3x and 8x, 2ab and 3ab

Addition:

 3x+8y+7z

-2x+3y+4z  (+)

-4x+3y+6z

_________

-3x+14y+17z

HOPE IT HELPS U...