<PRE><B>Question 825446</B>
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x = jenny
y = aunt
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(x + 5) = (2/3)(y + 5)
(x - 3) = (1/2)y
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put the system of linear equations into standard form
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x + 5 = (2/3)y + 10/3
x - 3 = (1/2)y
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x - (2/3)y = 10/3 - 15/3
x - (1/2)y = 3
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x - (2/3)y = -5/3
x - (1/2)y = 3
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3x - 2y = -5
2x - y = 6
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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 = jenny = 17
y = aunt = 28
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system matrix
3 -2
2 -1
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inverse of system matrix
-1 2
-2 3
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determinant of system matrix = 1
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Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
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Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
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Solve systems of linear equations up to 4-equations 4-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
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