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Question

Given 3[xyzw]=[x612w]+[4x+yz+w3], find the values of x,y,z and w.

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Solution

Given
3[xyzw]=[x612w]+[4x+yz+w3]

[3x3y3z3w]=[4+x6+x+y1+z+w2w+3]

Comparing terms, we get
3x=4+x
2x=4
x=2

3y=6+x+y
3y=6+2+y
2y=8
y=4

3w=2w+3
w=3

3z=1+z+w
3z=1+3+z
2z=2
z=1

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