Respuesta:
1. 28
2. 15
3. 22
4. 12
Explicación paso a paso:
1. (-30) - (-2) = -28
2. (-12) + 27 = 15
3. 7 - (-12) - (-3) = 22
4. 9 - (-3) = 12
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Respuesta:
1. 28
2. 15
3. 22
4. 12
Explicación paso a paso:
1. (-30) - (-2) = -28
2. (-12) + 27 = 15
3. 7 - (-12) - (-3) = 22
4. 9 - (-3) = 12