Question

Ayudarme por el método de sustitución
2x - 3y = 0
-3x + 5y = -1

Answer 1

2x - 3y = 0 ==> x = (0 + 3y) / 2
-3x + 5y = -1 

-3x + 5y = -1
-3 ( 0 + 3y) / 2 + 5y = -1
-3 ( 0/2 + 3/2 y) + 5y = -1
0 - 9/2y + 5 y= -1
-9/2y + 5 y = -1
1/2 y = -1
y = -1 / 1/2
y = -2

x = (0 + 3y) / 2
x = (0 + 3* - 2) / 2
x = (0 - 6) / 2
x = -6 / 2
x= -3