By simplifying the equation, we can find that the number represented by a triangle is three times that represented by a five-pointed star. Namely: ☆= 1, △ = 3,; ☆=0. 1,△=0.3,; ☆= 10, △=30 and so on.

Extended data:

"Elimination" is the basic idea of solving binary linear equations. The so-called "elimination" is to reduce the number of unknowns, so that the multivariate equation can eventually be transformed into a univariate multivariate equation and then the unknowns can be solved. This solution, that is, the solution in which the number of unknowns in the equation decreases from more to less, is called elimination solution.

Elimination methods are generally divided into: substitution elimination method, referred to as substitution method; Addition, subtraction and elimination method, abbreviation: addition and subtraction; Sequential exclusion method; Integral replacement method