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

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

25x + 61y – 12z = 15 18x – 12y + 7z = -3 z = 12 Зх + 4у —

25x + 61y 12z = 15 18x 12y + 7z = -3 z = 12 + 4

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