39x + 43y =203 , 43x + 39y = 207
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Answered by
1
Answer:
ok what to find x and y or something else
Answered by
3
Step-by-step explanation:
39x+43y= 203
=> 39x= 203-43y
=> x= 203-43y/39. ----> (i)
Now putting (i) in 43x+39y= 207 we have
43(203-43y)/39+39y= 207
=> 43*203-43*43y/39+39y= 207
=> 43(200+3)- 1849y+ 39*39y/39= 207
=> 8600+129-1849y+ 39(40-1)y= (200+7)39
=> 8729-1849y+1560y-39y= 7800+273
=> 8729-(1849-1560)y-39y= 8073
=> 8729- 289y-39y= 8073
=> -(289+39)y= 8073-8729
=> -328y= -656
=> y= -656/-328
=>y = 2
x= 203-43(2)/39
= 203-86/39
= 117/39
hope it helps ✌
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