Mathematics · GUIDED SAMPLE
Keep an equation balanced
Use the same operation on both sides to find an unknown, then substitute your answer to check it.
4-minute sample · No account neededWhat you’ll understand
- An equation states that two expressions have the same value.
- Subtracting the same number from both sides preserves equality.
- Dividing both sides by the same non-zero number preserves equality.
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THE CONCEPT LABGUIDED SAMPLE
KEEP BOTH SIDES BALANCED
2x = 10
−5 on the left. −5 on the right.“How do I solve 2x + 5 = 15?”
One equation. Three clear steps.
- 1Subtract 5 from both sides: 2x = 10.
NOW, OVER TO YOU
Your turn: if 2x + 5 = 19, what is x?
Keep the curiosity going.
Mathematics
Keep an equation balanced
Use the same operation on both sides to find an unknown, then substitute your answer to check it.
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