Write each phrase as a variable expression. Use x to represent a number. 1. Twice a number,
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Write each phrase as a variable expression. Use x to represent "a number."
1. Twice a number, decreased by thirty
2. The product of 7 and a number, added to 100
3. The difference of -9 times a number, and 1
4. Twice the sum of a number and -5
5. The quotient of ten times a number and -4
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