2x+3y=10 4x-5y=2 find x and y by using elimination method
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2x+3y=10.... equation first
4x-5y=2...... equation second
you can multiply equation first with 2.
After do this you will find such type of equation.
4x+6y=20.... equation first
4x-5y=2.....equation second.
simply you can take (- commune from equation first or second)
now you will see that
4x+6y=20...equation first
-4x+5y=-2....equation second
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11y=18.
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then y=18/11
simply put it in eq. first.
you will get the value of x.
so
2x+3×18/11=10
2x+54/11=10
2x=10-54/11
2x=110-54/11
2x=56/11
x=28/11..
so the values are
_____________
y=18/11,x=28/11
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