What is the solution to this system of equations? x − 2y = 15 2x + 4y = -18
Answers
Answered by
12
let x-2y=15
therefore,x=15+2y---------(i)
2x+4y=-18
2(15+2y)+4y=-18
30+4y+4y=-18
8y=-48
y=-6
therefore x=15+2y
15+2(-6)
15-12
x=3
therefore,x=15+2y---------(i)
2x+4y=-18
2(15+2y)+4y=-18
30+4y+4y=-18
8y=-48
y=-6
therefore x=15+2y
15+2(-6)
15-12
x=3
Answered by
9
x -2y = 15
(x -2y = 15)2
2x +4y =-18
then
2x-4y = 30............(i)
2x+4y = -18........(ii)
solving both
-8y=48
y = -6
x= 3
(x -2y = 15)2
2x +4y =-18
then
2x-4y = 30............(i)
2x+4y = -18........(ii)
solving both
-8y=48
y = -6
x= 3
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