Lista 2

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Lista 2

  1. 1. 1) Diga se pertence ou não pertence: ( ou ) A={ Números pares maior ou igual a dois} B={2,4,6,8,10,12,14,16,18,20} C={uva, laranja, maçã, pêra, manga, jabuticaba} D= A) 56___A F) 20___B B) 20___A G) Uva___C C) Laranja___D H) 3___A D) 2___A I) 1981782___A E) 2___B J) Laranja___B2) Usando os conjuntos anteriores diga se contém ou está contido: ( A) {2,4,6,}___A F) {3}___A B) A___B G) {}___D C) A___D H) {uva, abacaxi}___C D) C___D I) {2,4,6,7}___A E) D___A J) {25}___A3) Isole o x: A) 75.15= 7x-5 B) 6 C) = 42 21 D)4) Resolva as equações: A) X+5=8 B) x+x+x+x+x+4+1+2+3+4+5=50
  2. 2. C) 2x+3=3x+2 F) 2(x+5)=3(x+4)D) = +1 G)E) 5x=2+3x+6 H) 3x+4x+5x+6x=3+4+5+6 I) -6x+5=1+x

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