Write Two-Step Equations Lesson #3 Pg. 285

What You’ll Learn Translate sentences into Equations Solve two-step equations

Real World Link You want to attend a two-week robotic day camp that costs $ Your parents will pay the deposit of $ if you pay the rest in weekly payments of $ – Complete the Table PaymentsAmount Paid (0) = $ (1) = $

Write an Equation Write and solve an equation for the amount of weeks (payments) it will take to pay off the rest. PaymentsAmount Paid (0) = $ (1) = $

Steps to Writing Two-Step Equations There are three steps to writing a two step equation – Words Describe the situation, Use most important words – Variable Define a variable to represent the unknown quantity – Equation Translate your verbal model into an algebraic equation

Math Words IS – Means equals OF – Means Multiplication There are more, but these are very important

Example Eight less than three times a number is -23. – Words – Variable – Equation

Example Thirteen is seven more than one-fifth of a number. – Words – Variable – Equation

Example You buy 3 books that each cost the same amount and a magazine, all for $ The magazine costs $1.99. How much is each book? – Words – Variable – Equation

Example A personal trainer buys a weight bench for $ and w weights for $24.99 each. The total cost is $ How many weights were purchased? – Words – Variable – Equation

HOMEWORK Pg. 291 – 292, 14 – 28 all