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One half the sum of a number z and 3 1/2 is 4 1/2
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One half the sum of a number z and 3 1/2 is 4 1/2

User Tiago Moutinho
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4 1/2(2)=9. Multiply by 2 to get total
9- 3 1/2=z. Subtract 3 1/2 from total to get Z
5 1/2= Z
User Madhu Avinash
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