Question

7.– 5 { 4 +[3 – (4 - 8 ) +(- 5 – 10) ]}
8.{ 9 – [ 2 – ( 1 – 5)] } – [ 4 – (5 – 4 ) + ( - 5)]
9. 5 + 4 – [ ( - 4 ) – { ( 1 + 7 ) – [ - ( -3) – (+2)] + (-4 )} +( +6)]

Answer 1

Respuesta:

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