How to solve equations with variables on both sides?

the number of calories in a piece of pizza is 20 less than 3 time the number in a bag of chips the pizza and chips together have 620 calories how many calories are in each

One pound of grapes costs $1.55. Which equation correctly shows a pair of equivalent ratios that can be used to find the cost of 3.5 pounds of grapes?

Students in a large statistics class were randomly divided into two groups. The first group took the midterm exam with soft music playing in the background, while the second group took the exam with no music playing.

Latisha's water bottle can hold 0.3 liters. How many milliliters can it hold?

In two years, Marquise will be 1/3 of her mother's age. What is his mother's age?

A ticket agency charges a 9.5% fee on all tickets sold. If a ticket costs $40, what is the fee?

Inventory for a company is taken hourly from 10 to 4:00. At the start of the day, the warehouse had 65 boxes. Between 10 and 11, 7 boxes were shipped. From 11 to noon, 5 were sent, and another 9 between noon and 1 p. m.

The area of a Square family room is 100 square meters how long is each side of the family room

The length of a rectangle field is 24 meters. This is 3 meters less than twice the width. Find the width.

A personal pan 8 inch pizza is cut into 5 equal slices. What is the area of 1 slice of pizza to the nearest square in? Use 3.14 for pie