Question

Is (4, 3) the solution to the following system: y = x – 1 2x – 3y = -1 a Yes b No

Answer 1

Step-by-step explanation:

y = x-1

2x-3y = -1

2x-3(x-1) = -1

2x-3x+3 = -1

-x = -1-3 = -4

x = 4

y = x -1 = 4-1 = 3

solution ( 4,3 )

a) yes

Another Method

( x, y) = ( 4, 3 )

equation

1. y=x-1 , 4 = 3-1 is true

2. 2x-3y = -1 , 2(4) - 3(3) = 8 - 9 = -1 is true.