In an apartment if the common difference is -4 and the seventh term is 4 then find the first term
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Answer:
A= 28
Step-by-step explanation:
GIVEN
D = -4
A7 = 4
A= A + (N-1) D
a7 = a + 6d
a7 = A + 6(-4)
4= a - 24
A= 24 + 4
A= 28
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