Question

X10=20,d= -1

X1 =X10-9d=?​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

X10=20 d=-1

X1=X10-9d

X1=20-9(-1)

X1=20-(-9)

X1=20+9

X1=29

therefore X1=29

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