SOLUTION: Jenny and her cousin Jason share the same birthday. Jenny realized that on their next birthday, she would be 2 years less than 3 times Jason's age. If the sum of their ages will be

Question 829800: Jenny and her cousin Jason share the same birthday. Jenny realized that on their next birthday, she would be 2 years less than 3 times Jason's age. If the sum of their ages will be 18 years, how old will Jenny and her cousin be on their next birthday?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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x = Jenny
y = Jason
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x + 1 = 3(y + 1) - 2
x + 1 + y + 1 = 18
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put the system of linear equations into standard form:
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x + 1 = 3y + 1
x + y + 2 = 18
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x - 3y = 0
x + y = 16
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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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their ages today:
x = Jenny = 12
y = Jason = 4
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their ages on their next birthday:
x = Jenny = 13
y = Jason = 5
---
Solve and graph linear equations:
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---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
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