L&ouml;s nedanst&aring;ende ekvationssystem med valfri metod.<p><img src="../phpmathpublisher/img/math_949.5_65c695e1cc372367ba1cb08c1702b411.png" style="vertical-align:-50.5px; display: inline-block ;" alt="delim{lbrace}{tabular{0000}{00}{{-x~+~3y~-~z~=~-9} {-2x~+~4y~+~2z~=~-22} {4x~+~y~+~5z~=~8}}}{}" title="delim{lbrace}{tabular{0000}{00}{{-x~+~3y~-~z~=~-9} {-2x~+~4y~+~2z~=~-22} {4x~+~y~+~5z~=~8}}}{}"/><p><form action="ratta4.php">x: <input type="text" name="xsvar" size="2">       <br>y: <input type="text" name="ysvar"  size="2">       <br>z: <input type="text" name="zsvar"  size="2">       <br><p><input type="submit" value="R&auml;tta"></form><p>
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