Question

Solve simultaneoues equation x+y = 6 , x-y = 4

Answer 1

Answer:

(x,y)  (5,1)

Step-by-step explanation:

x = 5, y = 1  (I solved it in my head)

x+y = 6  eq.1

x-y = 4  eq.2

x = 6-y from eq. 1

(6-y) - y = 4   (by substituting) from eq. 2

6-2y = 4

-2y = -2

y = 1

x+1 = 6

x = 6-1

x = 5

Answer 2

Answer:

x=5, y=1

Step-by-step explanation:

let the equation x+y=6 be equation 1 and x-y=4 be equation 2.

On adding equation 1 and 2 we get,

x+y=6

+ x-y=4

--------------

2x+0=10

---------------

x=10/2

x=5

Substituting the value of x in equation 1 we get

5+y=6

y=5-6

y=1

Hence, solved

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