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Question 828611: the sum of two numbers is 99, and one of the numbers is 17 more than the other. What are the two mumbers?
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! ---
x + y = 99
x = y + 17
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put the system of linear equations into standard form:
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x + y = 99
x - y = 17
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copy and paste the above linear system in standard form into this matrix-method solver:
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solution:
x = 58
y = 41
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system matrix
1 1
1 -1
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inverse of system matrix
0.5 0.5
0.5 -0.5
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determinant of system matrix = -2
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