Упр.11 Appendix 1 Математика ГДЗ Enjoy English 10 класс

Приведем выдержку из задания из учебника Биболетова, Бабушис 10 класс, Дрофа: 11 Work in small groups. Explain how to solve the following system of linear equations. Use the model above. *Цитирирование части задания со ссылкой на учебник производится исключительно в учебных целях для лучшего понимания разбора решения задания.

To solve the system of linear equations, we can use the substitution method or the elimination method.

First, choose one equation and express one variable through the other. Then substitute this expression into the second equation. After that, solve the resulting equation and find the value of the second variable.

Finally, substitute the found value back into one of the original equations and get the value of the first variable.

Example: first find one unknown, then use it to find the other unknown.