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leonid [27]
2 years ago
10

the difference of two numbers is negative ten. seven times the first plus seven times the second is negative fourteen.

Mathematics
1 answer:
Kaylis [27]2 years ago
3 0
X-y=-10
x=-10-y

7x+7y=-14
7(-10-y)+7y=-14
-70-7y+7y=-14
0y=56
y=0

x=-10-y
x=-10-0
x=-10

I’m not 100% sure if this is right, so I hope someone checks this over :)
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