A woman walks x km north, then (x+7) km east. She is now 13km from her starting point. Find x.

Roy has 4 1/2 pizzas for the soccer team to split after the game. if each member is going to get 1/2 of a pizza, how many players are on the soccer team

Mr. lash has 42 pounds of dog food to divide among his dogs. if each dog receives 7/8 pounds of food for each feeding, how many times can mr. lash feed his animals?

Write an equation with the solution x=20. the equation should have the variable on both sides, a fractional coefficient on the left side, and a fraction anywhere on the right side. show work