Question 831857
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x = 9y
x + 9 = 3(y + 9)

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put the system of linear equations into standard form:
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x = 9y
x + 9 = 3y + 27
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x - 9y = 0
x - 3y = 18
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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 = man = 27
y = son = 3
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