How do you solve this system of equation: #x + 3y = 1 and - 3x - 3y = - 15#?
2 Answers
Jul 27, 2018
The solutions are
Explanation:
By substitution
Or graphically
graph{(x+3y-1)(x+y-5)=0 [-5.704, 12.076, -4.195, 4.694]}
Jul 27, 2018
Explanation:
Given equations
Subtracting (2) from (1), we get
setting the value of
Hence the solution is