On the njmber line below, the numbers x and y are the same distance from 0. What is x + y? Explain how you found your answer
1 answer:
Answer:
Step-by-step explanation:
either x+y=0
∵ if they are on number line and at same distance. then x=-y
or x+y=0
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(x + 8) × 4 = 21 × 4
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