Find a formula for the nth term of each arithmetic sequence
1.common difference:3
first term:-5
2.common difference:-7
first term:10
3.common difference:-3
fist term:-11
1.common difference:3
first term:-5
2.common difference:-7
first term:10
3.common difference:-3
fist term:-11
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1.common difference:3
first term: -5
an = 3n + (-8)
2.common difference:-7
first term:10
an = -7n + 10
3.common difference:-3
first term:-11
an = -3n - 8