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In this lesson, we will learn how to write and solve two-step linear equations to represent situations in the real world.

Q1:

Write an equation to describe the following: Negative forty-two is two less than four times a number.

Q2:

A cleaning session for a pool in a gym lasts for 35 minutes on weekdays and 45 minutes on weekends. Suppose the time it took to clean the pool last week was 5 hours altogether. Write an equation to represent this information, and then solve it to determine how many weekday cleaning sessions there were.

Q3:

Benjamin wants to join a gym in his neighborhood. It costs $20 for the first subscription plus a monthly fee of $12. If Benjamin has $152 to spend, write and solve an equation to find the number of months he can use the gym.

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