Algebra word problems
Lesson 13 of 20 in Union Aptitude Prep. The start plays free here.
- Situation in words
- Translate into algebra
- Same information
- Example: add 7 clips; total is 19
- x = starting number of clips
- Starting clips plus 7 equals 19
- x + 7 = 19
- Try x = 12
- Check: 12 + 7 = 19
- Number series trainer
- Algebra & functions with worked steps
- Reading comprehension sets
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How the lesson starts
A word problem describes a situation in words. You translate that situation into algebra so an equation can express the same information.
You read: adding seven clips brings a box's total to nineteen. How many clips were there before? Read until you understand what changed and what you're asked to find.
Then, in the full lesson
- Name the unknown
- One sentence
- Translate the relationship
- Check the story
- 2 questions along the way
A question from this lesson
A crew adds 4 boxes to a stack, bringing the total to 11. You need the starting number. What should x represent?
- The number of boxes after adding
- The number of boxes being added
- The number of boxes before adding
Show the answer
C. The number of boxes before adding. The number of boxes before adding is the unknown you need. The number being added is already given as 4. The number after adding is already given as 11.
The full class, $39 once.
Paid once, no subscription. Ask for a refund within 7 days of buying if you’ve done less than 25% of the class.
- Number series trainer
- Algebra & functions with worked steps
- Reading comprehension sets
Not affiliated with IBEW, NECA, ETA or any JATC. Original practice questions only.