Question

Solve the simultaneous equation x+y=4 ; x-y=2

Answer 1

Explanation:

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Answer 2

Answer:

Solution :-

The given equations are;

x + y = 4 . . . . . (1)

x - y = 2 . . . . . (2)

Now,

Adding equations (1) and (2), we get

x + y + x - y = 4 + 2

x + x + y - y = 6

2x = 6

x = 6/2

x = 3

Now,

Putting the value of x = 3 in equation (2) we get,

x - y = 2

➞ (3) - y = 2

➞ 3 - y = 2

➞ - y = 2 - 3

➞ - y = - 1

➞ y = 1

∴ The value of x = 3, y = 1 is the solution of the system of the given equations.