1 point
9) यदि 3x + 4y = 11 तथा 4x + 3y =
10 हो , तो (x - y) का मान कितना होगा
? *
Answers
Answered by
0
Answer:
x=1, y=2
Step-by-step explanation:
3x+4y=11 *4
4x+3y=10*3
-------------------
12x+16y=44
12x+9y= 30
-------------------
0+7y= 14
y=14/7
y=2
3x+4y=11
3x+4(2)=11
3x+8=11
3x=11-8
x=11-8/3
x=1
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