SOLUTION: Chris is five years older than his sister. The sum of their ages is 39. Find Chris's age.

Question 830425: Chris is five years older than his sister. The sum of their ages is 39. Find Chris's age.
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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x = Chris
y = Sister
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x = y + 5
x + y = 39
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put the system of linear equations into standard form:
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x - y = 5
x + y = 39
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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 = Chris = 22
y = Sister = 17
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