Պարապմունք 108

mariannakhachatryaniblog

Աշխատանք դասագրքից, համարներ՝  646-650, էջ՝ 125

  1. x-2=0
  2. x+4=0
  3. 2x=4
  4. 3x-4=x
  5. x+3=2x+1
  6. 3x+4=6x-2

647.

  1. 0-2=0
  2. 0+4=0
  3. 100+0=0
  4. 11-5=6
  5. 3+2=5
  6. -18-11=-7
  7. 12+5=17
  8. 0+7=7
  9. 0-6=6

648.

  1. 5+(-2)=3
  2. -7+5=-2
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