write an algebraic equation to present each english sentence. 2

Mathematics
Tutor: None Selected Time limit: 1 Day

Three times the difference of a number and seven is one less than twice the number. find the number

2) The sum of three consecutive integers  is -66. Find the integers.

3) The sum of two consecutive odd integers is 52. Find the integers.

Feb 2nd, 2015

1) 3(x - 7) = 2x - 1

3x - 21 = 2x - 1

x = 20

2) x+x+1+x+2 = -66

3x + 3 = -66

3x = -69

x = -23

x+1 = -22

x+2 = -21

3) x + x+2 = 52

2x + 2 = 52

2x = 50

x = 25

x+ 2 = 27

Feb 2nd, 2015

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