solve for x and y. 37x+53y=320 and 53x+37y=400
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Answered by
17
Answer:
Step-by-step explanation:
53x+37y=400-----1
37x+53y=320-----2
Adding 1&2
90x+90y=720
X+Y=720-90
------=80-------3
Sibtractin 2 from 1
16x-16y=80
X-Y=5------4
Now from these two eq you can solve hope it helps plz mark it as BRAINLIEST took a lot of hard work plz
Answered by
22
Answer:
Step-by-step explanation:
37x+53y=320------(i)
53x+37y=400-------(ii)
Adding eqn. (i) and (ii)------ we get----
90x+90y=720
i.e. x+y=8-------(iii)
Now subtracting eqn. (i) from (ii)-----we get-
16x-16y=80
i.e. x-y=5-------(iv)
Adding eqn. (iii) and (iv) we get
2x=13
x=13/2
now putting the value of x in eqn .(iii) we get-----
y=8-13/2
y=3/2
HENCE x=13/2 and y =3/2
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