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disa [49]
3 years ago
5

1. X-7 = -12 2.-8 +x= 23 3. -5x = 15

Mathematics
1 answer:
Agata [3.3K]3 years ago
6 0

Answer:

1. X-7 = -12          X-7+7=-12+7      X=-5

2.-8 +x= 23         -8+8+x=23+8    x=31

3. -5x = 15          5x/-5=15/-5        x=-3

Step-by-step explanation:

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