Solving equations
The balance method: do the same to both sides, and check your answer. Read one part at a time and tap “I know this”. Then test yourself in the quiz.
Know it already? Jump straight to the quiz
Solving equations
An equation is like a balanced scale. What you do to one side, you must do to the other.
3x + 5 = 20 → subtract 5 from both sides: 3x = 15 → divide both sides by 3: x = 5.
Always check: 3 × 5 + 5 = 20 ✓.
- Inspection: x + 7 = 12 → which number plus 7 is 12? x = 5.
- Trial and improvement: try a number, check, and adjust.
Remember this and test yourself
- An equation is balanced.
- Do the same to both sides.
- Undo + and − first, then × and ÷.
- Check by substituting back.
Write these points in your book. Read them again the night before the test.
Keep the seesaw level: what happens on the left happens on the right.
Important words
First say the answer yourself, then turn the card over.
Match column A to column B
Tap a word in column A, then its meaning in column B. You can also start in column B.
Now the real quiz!
The quiz has many more questions on this topic. Every question shows straight away whether you are right and explains why.
Take the quiz: Solving equations- Let your child work the examples on paper and explain them to you.
- The ticks (“I know this”) are saved on this device only. We never ask for names or emails.
Follows CAPS for Grade 7 Mathematics. Always check your teacher’s notes and textbook too.