2x - y = 5
x + 3y = 7
I'm assuming you mean the coefficient matrix.
Answer:
you have to make sure you did all the step use the cross products method I think sorry if I am wrong
x = 2
step 1 :
(2 • (5x + 2) • 2) - 48 = 0
step 2 :
4 • (5x + 2) - 48 = 0
Pulling out like terms :
20x - 40 = 20 • (x - 2)
step 4 :
20 • (x - 2) = 0
Equations which are never true :
Solve : 20 = 0
A a non-zero constant never equals zero.
Solving a Single Variable Equation :
Solve : x-2 = 0
Add 2 to both sides of the equation :
x = 2
First u need to read the problem second annalyze 3 create ecuation 4 solve 5 write it in words
Step-by-step explanation:
= 10x - 5 + 3x - 2
= (10 + 3)x + (-5 - 2)
= 13x - 7