Question

8Ejercicio resuelto
[(+2) + (-12)] – [(3-7) – (7-2)] =
= [(+2) + (-12)] - [(-4) -- (+5)
= - [2 - 12) - (-4-5)=(-10)---9]
=-10 + 9--1

Answer 1

Respuesta:

Explicación paso a paso:

[(+2) + (-12)] – [(3-7) – (7-2)] =  [-10]-[(-4)-(5)] = [-10]-[1] = -11

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[(+2) + (-12)] - [(-4) - (+5)] =[-10] - [-9] = -10+9=-1

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- [2 - 12) - (-4-5)]=-(-10)-(-9)=-1

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[(-10)-9] =-19

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-10 + 9-1=-2