Question

2x-3y=19 ; 5x+3y=-5 simultaneous equation ​

Answer 1

Answer:

value of x equals 2

value of y equals -5

Step-by-step explanation:

$2x - 3y = 19 \\ - 3y = 19 - 2x \\ 3y = 2x - 19$

substitute 3y in second equation we get

$5x + 3y = - 5 \\ 5x + (2x - 19) = - 5 \\ 5x + 2x = - 5 + 19 \\ 7x = 14 \\ x = 2$

substitute x = 2 in

$3y = 2x - 19 \\ 3y = 2(2) - 19 \\3y = 4 - 19 = - 15 \\ 3y = - 15 \\ y = - 5$

verification

2x - 3y = 19

2(2) -3(-5) = 4 +15 = 19.