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
3x + 4 = 19
Subtract 2x from both sides so the variable terms are on one side.
- 2
3x = 15
Subtract 4 from both sides to keep the equation balanced and isolate the x-term.
- 3
x = 5
Divide both sides by 3. The value works in either side of the original equation.
Final answer
x = 5