PDF chapter test TRY NOW
Simplify:
(i) \((x + y - z) + (3x - 5y + 7z) - (14x + 7y - 6z) =\)
(ii) \(p + p + 2 + p + 3 - p - 4 - p - 5 + p + 10 =\)
(iii) \(n + (m + 1) + (n + 2) + (m + 3) + (n + 4) + (m + 5) =\)
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