solve:x-y=5; 3x+2y=25
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Answer:
Radhe radhe
Step-by-step explanation:
x = 7
y= 2
therefore the solution of equation is (7,2)
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» x = 7
» y = 2
» x - y = 5 .........[1]
» 3x + 2y = 25 ..........[2]
Value of x and y
From equation 1
x - y = 5
x = 5 + y........[3]
Put value of x In equation 2
» 3(5 + y) + 2y = 25
» 15 + 3y + 2y = 25
» 5y = 25 - 15
» 5y = 10
» y = 10/5
» y = 2
Put value of y in equation 3
» x = 5 + 2
» x = 7
Put value of x and y in equation 1
» x - y = 5
» 7 - 2 = 5
» 5 = 5
L.H.S = R.H.S
Now, put value in equation 2
» 3x + 2y = 25
» 3(7) + 2(2) = 25
» 21 + 4 = 25
» 25 = 25
L.H.S = R.H.S
Hence, verified
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