Ellie pays 3 dollar for $$2$$ bananas and $$3$$ apples. Beth pays 4 dollar for $$3$$ bananas and $$2$$ apples. How much does Annabella pay for $$10$$ banana and $$10$$ apple? 
Overseas Competition->Knowledge Point->Word Problem Modules->Equation Word Problems->Multivariate Linear Equation Word Problems->Solving Problems by Solving System of 
Binary Linear Equations with Integer Coefficients 