Question

x +y=3; x-y=4 simultaneous linear equation

Answer 1

Hi friend!!

x+y=3----(1)

x-y=4---(2)

Adding (1) and (2),we get

2x=7

x=7/2

Substitute in(1)

7/2+y=3

y=3-7/2

=-1/2

I hope this will help u ;)

Answer 2

Heya !!!


X + Y = 3 --------(1)


And,


X - Y = 4 ---------(2)


From equation (1) we get,


X + Y = 3

X = 3 - Y -------(3)


Putting the value of X in equation (2)


X - Y = 4


3 - Y - Y = 4


-2Y = 4-3


-2Y = 1



Y = -1/2


Putting the value of Y in equation (3)



X = 3 - Y => 3 - (-1/2) = 3 + 1/2



X = 6 + 1/2 = 7/2.



HOPE IT WILL HELP YOU...... :-)