Year 8 maths · O.1 · One-step and two-step equations
One-step equations: add and subtract
Do the opposite operation to both sides to get x alone.
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Solve for x: x − 7 = −1
Answer: 6
Solve for x: x − 2 = 9
Answer: 11
Solve for x: x + 6 = 7
Answer: 1
Tip: Do the opposite operation to both sides to get x alone.
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