How do you solve 5x+7=3x-5

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?

What is fraction that is equivalent to 3/8

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.