Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**DeadOrAlive****Member**- Registered: 2006-02-04
- Posts: 5

i have 2 equations

12-20i-5(i+I)= 0

8-5I-5(i+I)=0

ifi i3 = i+I determine the values by solving 1 and 2 by matrices....

i havent got a clue what to do can anyone do it?

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**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,588

What does "ifi i3" mean?

**igloo** **myrtilles** **fourmis**

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**DeadOrAlive****Member**- Registered: 2006-02-04
- Posts: 5

if i3

i put an extra i in there by accident

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