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Cedric and Insha solved the same equation using the calculations below. Cedric’s Work Insha’s Work z minus 4.5 = negative 1.5. z minus 4.5 + 4.5 = negative 1.5 + 4.5. z = 3. z minus 4.5 = negative 1.5.
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Cedric and Insha solved the same equation using the calculations below.

Cedric’s Work
Insha’s Work
z minus 4.5 = negative 1.5. z minus 4.5 + 4.5 = negative 1.5 + 4.5. z = 3.
z minus 4.5 = negative 1.5. z minus 4.5 + (negative 4.5) = negative 1.5 + (negative 4.5). z = negative 6.

Which statement is true about their work?

User Chay
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1 Answer

4 votes
4 votes

The first working out is correct, z = 3

User Modern Labs
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