More Translation

• Becoming clear?

  • $8 = $1 + $2
  • $9 = $3 + $4
  • $5 = $8 - $9

• Surely OK now?

  • u = a +b
  • v = c+d;
  • x = u - v

• Or, obviously: x = (a+b) - (c+d)

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