HowUndo +3 by subtracting 3 from both sides.
Maths activitiesEquations · Year 7/8 real-world maths
Equation Repair Workshop
You are repairing incomplete invoices and sensor rules. An equation stays trustworthy only when both sides remain equal.
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Linear equations and equality · Lesson 1 of 5
Keep goingBalance the repair bench
LookSee the ideaTryChange the modelCheckUse the clue
Do thisBalance x + 3 = 11. Find x.
Change it. Then tap Check.
x + 33
1111
x + 3 = 110 + 3 ≠ 11
Keep both sides equal, then verify the repair.
Mathsundo the same amount on both sides
WhyAn equation finds an unknown amount from a known total.