Find abc+acb=bca if you replace the letters with numbers

Will give brainliest what is the value of x? enter your answer in the box.

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

Parallel lines r and s are cut by two transversales, parallel lines t and u. which angles are corresponding angles with angle 8