← EquationsEquations 028 — ZAP 2016, Exercise 6EquationsZAP 2016MediumYour answerEnter only the number. Use a point or comma for decimals.Check answerReveal solutionStuck? Show me one stepRelated exercisesEasierWord Problems 039 — January in the mountainsSimilarWord Problems 045 — The electricity meterWord Problems 038 — ZAP 2022, Exercise 2: Climate