SOLUTION: linda, ali, and charlie have a total of $119 in their wallets. charlie has 4 times what ali has. linda has $7 less than ali. how much does each have?

Question 927901: linda, ali, and charlie have a total of $119 in their wallets. charlie has 4 times what ali has. linda has $7 less than ali. how much does each have?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = linda's dollar amount
y = ali's dollar amount
z = charlie's dollar amount
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x + y + z = 119
z = 4y
x = y - 7
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put the system of linear equations into standard form
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x + y + z = 119
4y - z = 0
x - y = -7
---
copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = linda's dollar amount = 14
y = ali's dollar amount = 21
z = charlie's dollar amount = 84
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
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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