help me with this please
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0
Answer:
9
Step-by-step explanation:
3{ (2x - 2y) + (2y-2z) + (2z - 2x) } + 9 = 3 * {0} + 9
= 9
[ 2x - 2x + 2y-2y + 2z-2z ] = 0
Please mark it as brainliest if it helps you
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