Write an equation. Solve for the variable.
1. Ralph and Dave run a law care service. Since Dave owns all the equipment, he is supposed to earn $6 more than twice as much as Ralph each month. If Dave earned $906 in May, how much did Ralph earn?

Seth practice piano for 1 1/3 hours on saturday and 5/6 hour on sunday for much longer did he practice on saturday than on sunday?

You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

Write a corresponding real world problem to represent 2x - 125=400