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1. 30-70h=30 2. 300+70h=-30 3. 300-70h=-30 4. 300+70h=30
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1. 30-70h=30
2. 300+70h=-30
3. 300-70h=-30
4. 300+70h=30

1. 30-70h=30 2. 300+70h=-30 3. 300-70h=-30 4. 300+70h=30-example-1
User Hackerrdave
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It is 300-70h=30

If you do the math 300 - 30 kilos to go is 270 kilos. 270 kilos divided by 70 kilos is about 3.85. So with the correct equation you can solve and find it true. 300 - 70(3.85) is roughly 30.
User Songlj
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