Question

X + Y = 1
X - Y = 4
_______-
-2Y= -3
Nilai x dan y......?

Answer 1

Eliminasi x

x + y = 1

x - y = 4
________-
2y = -3

y = -3 ÷ 2

y = -1,5


eluminasi y


x + y = 1

x - y = 4
________+
2x = 5

x = 5 ÷ 2

x = 2,5

Answer 2

Jawab:x=5/2 y=-3/2

Penjelasan dengan langkah-langkah:

X+Y = 1

X-Y = 4

______+

2X = 5

X= 5/2

X+Y =4

Y= 1-5/2

Y= 2/2 - 5/2

Y=-3/2