SOLUTION: Nick walked a total of 30 blocks in 5 days. Each day he walked 3 blocks more than the previous day. How many blocks did he walk on Day 1. I think the answer is he did not walk any

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Let x= distance for day 1,,,subsequent days are,,x+3,,x+6,,x+9,,,x+12
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as total for 5 days is 30,,
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x +x+3 +x+6 +x+9 =x+12 =30
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5x +30 =30
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5x =0
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x= 0,,,,,,,or he doesn't have to walk at all 1st day,,
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check,,0+3+6+9+12 = 30,,,,ok
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