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PIMSO 2025 - Mathematics - Secondary 1 - National Round Question 8

PIMSO Maths · PIMSO 2025 - Mathematics - Secondary 1 - National Round

Question 8

If $b\lt a\lt0$, $c>0$, and $|c|>|b|>|a|$, simplify $2|a+b|+|b+c|+|c+a|$?
  1. $2(-a-b+c)$
  2. $2(a+b+c)$
  3. $-a-b+2c$
  4. $-3a-3b+2c$