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  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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Topic review (newest first)

irspow
2006-01-15 08:13:05

I'm thinking that toru missed the shift key in problem 2, making it 5(m+n)-(3m+2n).

  5m + 5n - 3m - 2n = 2m + 3n.

ryos
2006-01-15 06:18:20

1. Distribute the minus sign through: 8h - 3h - 2k. This becomes 5h - 2k.

2. 5(m=n)-(3m+2n)  --  The parentheses don't make sense here. I'm going to rewrite it as 5m = n - (3m + 2n). Now:

5m + 3m + 2n = n
8m = -n

Solve for either:
n = -8m
m = -n/8

toru
2006-01-15 05:49:26

can you please simplify it ?
1.   8h-(3h+2k)          2.    5(m=n)-(3m+2n)

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