Answer:
There are no like terms to therefore the answer is -4x+5y+6z
7/9 -2/8 * 4/9 =
7/9 -1/4*4/9 =
7/9 -1/9 = 8/9
Answer: 8/9
????
i dont know
Step-by-step explanation:
√(-5.5-6.5)²+(-3+3)²
=√144
=12