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⬜+⭕ = 10, ⭕ = ?
Δ+Δ = 6, Δ = ?
Δ+⭕ = 5, ⬜ = ?
⭕ = 2
Δ = 3
⬜ = 8
In the First Equation, ⬜+⭕ = 10, we don't get any idea of what is ⬜ and ⭕. (Move on to second equation)
In the second equation, Δ+Δ = 6, we find that sum of 2Δ is 6 so 2Δ= 6, Δ=6/2 = 3. We can get the value of Δ in this equation, that is 3. Δ = 3
In the Third equation, Δ+⭕ = 5, we know the value of Δ, 3, so we can find the ⭕ in the equation. 3+⭕ = 5, ⭕ = 5-3, ⭕ = 2. Now we know the value of ⭕, ⭕=2 (now move back to the first equation.)
In the First Equation, ⬜+⭕ = 10, we know the value of ⭕, ⭕=2, so we can find the value of ⬜. ⬜+2 = 10, ⬜ = 10-2, ⬜ = 8.
Now we know All the values of symbols-
⭕ = 2
Δ = 3
⬜ = 8
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