Question: Use the idea behind Example 15 with a graphing utility to solve the following systems of equations. Round answers to two decimal places. 25 +

Use the idea behind Example 15 with a graphing utility to solve the following systems of equations. Round answers to two decimal places. 

25х + 61у — 12z - 10 18x – 12y + 7y = -9 Зх + 4y — z = 12 %3D

25 + 61 12z - 10 18x 12y + 7y = -9 + 4y z = 12 %3D

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