Write the system in the form 
Then solve the linear system by computing 
with a calculator. Round numbers to the nearest tenth, as necessary.1.5x + 3.1y - 2.3z + 0.6w = 2.76.1x - 0.5z - 3.4w = 0.8 11.5y - 2.2w = 04.0x + 3.0y - 2.1z = 9
A. (3.2, 1.0, 3.7, 5.0)
B. (7.9, 2.4, 9.0, 12.3)
C. (3.6, 1.1, 4.1, 5.6)
D. (4.3, 1.3, 4.9, 6.7)
Answer: C
Mathematics
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