Equations and Inequalities Review - 7th Grade

James had a collection of rocks.  He then found six more rocks on a hiking adventure with his friends.  Later he decided to give half of all of his rocks away to a friend.  He now has 15 rocks remaining.  How many rocks did James originally have? Which equation would be used to solve this situation?

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 2(4x-1) = 39.6

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 $\frac{3}{4}x+1=7$ 

•  $x=10.67$ 

•  $x=6$ 

•  $x=8$ 

•  $x=4.5$ 

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Elijah is five years less than two times Victor’s age. Elijah is 9 years old. How old is Victor?

• x=2

• x=4

• x=7

• x=14

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 Martin and Sariah each get paid $6.50 per hour to babysit, with Martin earning an additional $30.00 mowing yards.  If together they earned a total of $225, how many hours did EACH person babysit if they both babysat the same amount of hours?

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Which of the following inequalities will require you to reverse the inequality symbol when solving?

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