[tex]a) + 8 + ( + 6) = 8 + 6 = 14[/tex]
[tex]b) + 9 + ( + 9) = 9 + 9 = 18[/tex]
[tex]c) - 6 + ( - 10) = - 6 - 10 = - 16[/tex]
[tex]d) + 15 + ( - 10) = 15 - 10 = 5[/tex]
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Verified answer
[tex]a) + 8 + ( + 6) = 8 + 6 = 14[/tex]
[tex]b) + 9 + ( + 9) = 9 + 9 = 18[/tex]
[tex]c) - 6 + ( - 10) = - 6 - 10 = - 16[/tex]
[tex]d) + 15 + ( - 10) = 15 - 10 = 5[/tex]