User:
Simultaneous equations
Introduction
Solving system of equations:
- Substitution
- Elimination
- Graphing
- Using the augmented matrix
- Using the inverse matrix
Word problems (2 equations)
Systems of 3 variables equations
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A pizza restaurant sells two types of pizza, the 'margarita' at €4 and the 'four cheeses' at €5 . One night it sells 57 pizzas and earns €250. How many types of each type of pizza does it sell?
Solution:
Margarita:
. Four cheeses: