Respuesta:
[tex]21[/tex]
Explicación paso a paso:
[tex]21 \div \left [ (-6)-(-3) \right ]+28 \div \left [ -3-(-4) \right ]\\\\21 \div \left [ (-6)+3 \right ]+28 \div \left [ -3+4 \right ]\\\\21 \div \left [ -3 \right ]+28 \div \left [ 1\right ]\\\\-7+28\\\\21[/tex]
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Verified answer
Respuesta:
[tex]21[/tex]
Explicación paso a paso:
[tex]21 \div \left [ (-6)-(-3) \right ]+28 \div \left [ -3-(-4) \right ]\\\\21 \div \left [ (-6)+3 \right ]+28 \div \left [ -3+4 \right ]\\\\21 \div \left [ -3 \right ]+28 \div \left [ 1\right ]\\\\-7+28\\\\21[/tex]