Mathematics for IGCSE & O level - Equations (Section 6 - No. 29)
What is a common error when multiplying through by a number or letter to solve equations involving fractions?
Forgetting to multiply just the first term
Forgetting to multiply every term
Multiplying the denominator
Dividing the numerators
Explication
Remember to multiply *every* term on *both* sides of the equation to maintain balance.