SOLUTION: two years ago,Perla was 7 times as old as Merly.two years from now,Perla will be 6 years more than 4 times as old as merly will be.Find the present age of each.
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-> SOLUTION: two years ago,Perla was 7 times as old as Merly.two years from now,Perla will be 6 years more than 4 times as old as merly will be.Find the present age of each.
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Question 830302: two years ago,Perla was 7 times as old as Merly.two years from now,Perla will be 6 years more than 4 times as old as merly will be.Find the present age of each. Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! ---
x = Perla
y = Merly
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x - 2 = 7(y - 2)
x + 2 = 4(y + 2) + 6
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put the system of linear equations into standard form:
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x - 2 = 7y - 14
x + 2 = 4y + 8 + 6
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x - 7y = -12
x - 4y = 12
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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 = Perla = 44
y = Merly = 8
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