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Mathematics, 26.03.2020 03:26 goldenwolf67

If ◇ + ◇ + ◇ = 30
◇ + ○ + ○ = 20
○ + ▪▪ + ▪▪ = 13
what is ◇ + ○ + ▪ = ?

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If ◇ + ◇ + ◇ = 30
◇ + ○ + ○ = 20
○ + ▪▪ + ▪▪ = 13
what is ◇ + ○ + ▪ = ?...

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