# Can you solve this math picture puzzle?

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Can you solve this math picture puzzle?

posted May 12

We can write the following equations:
X + 2Y -2Z = 5
2Y -2Z = 4
X + 4Z = -7
Multiplying the second equation by -1 and adding to the first equation, it gives X = 1
Then, replacing the value of X in the third equation, we obtain Z = -2
Finally, replacing the value of Z in the first equation, Y = 0
Therefore ,
1 + 0 -2 = -1

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Can you solve this math picture puzzle?

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