solve the following problem.show your complete solution
1. 2 The sum of 72 and a number equals four times the number. What is the number?
2. Twice a number minus 7 is at most 23. What is the maximum value of the number?
1. 2 The sum of 72 and a number equals four times the number. What is the number?
2. Twice a number minus 7 is at most 23. What is the maximum value of the number?
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Answer:
1. 72+x= 4x
72=4x-x
72=3x
72/3= 3x/3
24=x
2. 2x -7 = 23
2x= 23+7
2x= 30
2x/2= 30/2
x= 15
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