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Question 825434: j=p/9+2 , p=6j+2 Values of p and j please?
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! ---
j=p/9+2
p=6j+2
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put the system of linear equations into standard form
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x = j
y = p
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x = y/9 + 2
y = 6x + 2
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x - (1/9)y = 2
6x - y = -2
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x - 0.111111y = 2
6x - y = -2
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copy and paste the above linear system in standard form into this matrix-method solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = j = 6.6666667 = 6+2/3 = 20/3
y = p = 42
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system matrix
1 -0.11111111
6 -1
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inverse of system matrix
3 -0.33333333
18 -3
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determinant of system matrix = -0.333333333333
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