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Expressions and equations · Grades 9–10

Solve with variables on both sides

Free worked example · No account needed

Example question

5x + 4 = 2x + 19

Work through it

  1. 1

    3x + 4 = 19

    Subtract 2x from both sides so the variable terms are on one side.

  2. 2

    3x = 15

    Subtract 4 from both sides to keep the equation balanced and isolate the x-term.

  3. 3

    x = 5

    Divide both sides by 3. The value works in either side of the original equation.

Final answer

x = 5