Question

Solve the simultaneous equations x+y=5, x-y=3

Answer 1

Answer:

x + y = 5 ------(1)

x - y = 3--------(2)

____________(By Adding)

2x = 8

x = 4

Substitute x = 4 in (1)

x + y = 5

4 + y = 5

y = 1

Solution (x,y) = (4,1)

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Answer 2

Step-by-step explanation:

$x + y = 5 \: ........(1) \\ x - y = 3 \: \: .........(2) \\ adding \: equation \: (1) \: and \: (2) \\ x + y + x - y = 5 + 3 \\ = > x + x = 8 \\ = > 2x = 8 \\ = > x = \frac{8}{2 } \\ = > x = 4 \\ again \: putting \: \: \: x = 4 \: in \: equation(1) \\ \\ we \: get \: x + y = 5 \\ = > 4 + y = 5 \\ = > y = 5 - 4 \\ = > y = 1 \\ hence \\ x = 4 \: \: \: \: \: and \: \: \: y = 1 \: \: \: ans.$