AP - simple

Determine the first nine elements of sequence if a10 = -1 and d = 4

Correct result:

a9 =  -5
a8 =  -9
a7 =  -13
a6 =  -17
a5 =  -21
a4 =  -25
a3 =  -29
a2 =  -33
a1 =  -37

Solution:

a9=14=5
a8=54=9
a7=94=13
a6=134=17
a5=174=21
a4=214=25
a3=254=29
a2=294=33
a1=334=37



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