1 answer:
Answer:
x = -3
y = 4
Step-by-step explanation:
first i plug y=x+7 for y on 2x=y-10
this makes it 2x=x+7-10
then i solve 7-10 to get 2x=x-3
i subtract -x from both sides to get x=-3
so i plug in x=-3 to x+7=y to get -3+7=y which makes y=4
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