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Solomon Moreno
Mathematics
2 November, 19:33
Evaluate: 7 z + (-z), when z = 4.
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Pena
2 November, 19:35
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Plug 4 into the expression for the value z and complete the expression,
7 (4) + (-4) = 28-4
24.
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Darryl Bennett
2 November, 19:37
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First insert 4 into the place of every z. Making the problem 7 (4) - 4. Next multiply 7 and 4 to get 28, then simply subtract 4. Your answer will be 24
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