Question

The sum of three numbers is 79. The sum of five times the first number and two times the

second number increased by the third number is 859. Two time the first number, increased by
three times the second number plus nine times the third number is 498. Write a system.

Answer 1

(x+y+z)=79

5x+2y+z=859

2x+3y+9z=498

Explanation:

Its writing 3 different equations that have the same value for the same variable.