Solve for x and explain how you got your answer please

-3x -5 = 16

7(x - 2) = 3(x + 4) solve the following equation. then enter your answer in the space provided using mixed number format.

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

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?