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Year 8 maths · O.12 · One-step and two-step equations

Equations with decimal coefficients

Undo the adding or subtracting, then divide both sides by the decimal. Write x as a decimal or whole number.

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  1. Solve for x: 1.8x − 2.3 = 1.3

    Answer: 2

  2. Solve for x: 4.1x − 2 = 18.5

    Answer: 5

  3. Solve for x: 3.1x − 5 = 1.2

    Answer: 2

Tip: Undo the adding or subtracting, then divide both sides by the decimal. Write x as a decimal or whole number.

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