curl --request POST \
  --url https://api.iotools.cloud/v1/tool/system-of-linear-equations-solver \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "equations": "2, 1, 5\n1, -1, 1"
}
'

{
  "tool": "system-of-linear-equations-solver",
  "tool_version": "1.0.2",
  "outputs": {
    "status": "Unique solution.",
    "solution": [
      {
        "variable": "x1",
        "value": "2"
      },
      {
        "variable": "x2",
        "value": "1"
      }
    ],
    "reducedMatrix": "1  0 | 2\n0  1 | 1"
  },
  "credits_used": 5,
  "credits_remaining": null
}