<PRE><B>Question 828324</B>
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2x + 2y = 58
x = 2y - 4
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put the system of linear equations into standard form:
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2x + 2y = 58
x - 2y = -4
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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 length = 18 cm
y width = 11 cm
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system matrix
2 2
1 -2
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inverse of system matrix
0.33333333 0.33333333
0.16666667 -0.33333333
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determinant of system matrix = -6
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Solve and graph linear equations:
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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 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
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