Can you find the value of x in the problem below? http://t.co/DPiWO1qIix pic.twitter.com/SDbUDqEG8T
— Khan Academy (@khanacademy) 12 พฤษภาคม 2015
4x = x +454x = 45 + x
4x - x = 45
3x = 45
x = 45/3
x = 15
Can you find the value of x in the problem below? http://t.co/DPiWO1qIix pic.twitter.com/SDbUDqEG8T
— Khan Academy (@khanacademy) 12 พฤษภาคม 2015
4x = x +45
Can you figure out the height of this rectangle? http://t.co/ghTi73Di8B pic.twitter.com/CEPLyKTHlh
— Khan Academy (@khanacademy) 11 มิถุนายน 2015
Can you find the value of angle x? http://t.co/rUatPq66XV pic.twitter.com/PPeaA8Bv24
— Khan Academy (@khanacademy) 2 กรกฎาคม 2015
What is the area (in square units) of the triangle below? http://t.co/rPtmQd6hHl pic.twitter.com/RZCPuuwvTA
— Khan Academy (@khanacademy) 21 กรกฎาคม 2015