Asked by kath
Finde three consecutive integers such that the sum of the first and third is 16
Answers
Answered by
Bosnian
a = first integer
a + 1 = second integer
a + 2 = third integer
first integer + third integer:
a + a + 2 = 16
2 a + 2 = 16 Subtract 2 to both sides
2 a + 2 - 2 = 16 - 2
2 a = 14 Divide both sides by 2
a = 14 / 2 = 7
Three consecutive integers are 7, 8 , 9
7 + 9 = 16
a + 1 = second integer
a + 2 = third integer
first integer + third integer:
a + a + 2 = 16
2 a + 2 = 16 Subtract 2 to both sides
2 a + 2 - 2 = 16 - 2
2 a = 14 Divide both sides by 2
a = 14 / 2 = 7
Three consecutive integers are 7, 8 , 9
7 + 9 = 16
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