Use a Graphing Calculator to Solve the System of Equations $2.6 x-0.7 y+5.3 z-3.4 w=12.9$

question 74

Multiple Choice

Use a graphing calculator to solve the system of equations. Round your solution to one decimal place.
- $2.6 x-0.7 y+5.3 z-3.4 w=12.9$
$6.5 \mathrm{y} \quad+0.7 \mathrm{w}=-1.8$
$4.0 z-2.2 w=1.5$
$4.9 x+0.6 w=3.2$

• A) \( (2.2,1.1,7.2,12.4) \)
• B) \( (-2.2,1.1,-6.4,23.3) \)
• C) \( (2.2,1.1,-6.4,-12.4) \)
• D) \( (2.2,-1.1,-6.4,7.6) \)

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