Asked by Alex
The sum of the first two terms of an arithmetic series is 15 and the sum of the next two terms is 43. What are the first four terms of the series?
Answers
Answered by
Steve
a + a+d = 15
a+2d + a+3d = 43
collect terms to get
2a+d = 15
2a+5d = 43
That should get you started.
a+2d + a+3d = 43
collect terms to get
2a+d = 15
2a+5d = 43
That should get you started.
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