Question

the solution of the equations x+y=14 and x-y=4
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Answer 1

Step-by-step explanation:

=> GIVEN:

$= = > x + y = 14 - - - - - - - - (1). \\ = = > x - y = 4 - - - - - - - - - (2).$

=> EQUATING VALUE OF X FROM 1ST EQUATION WE GET :--

$= = > x = 14 - y$

==> PUTTING THE VALUE OF "X" INTO EQUATION 2ND WE GET:--

$= = > x - y = 4 \\ = = > 14 - y - y = 4 \\ = = > 14 - 2y = 4 \\ = = > 2y = 10 \\ = = > y = 5$

-->> NOW, TO GET VALUE OF "Y" IN EQUATION IN 1ST WE GET:--

$x + y = 14 \\ x = 14 - y \\ x = 14 - 5 = 9.$

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PRECAUTION MUST BE TAKEN TO SOLVE THESE TYPE OF PROBLEMS ARE :-

a) PRECISE CALCULATION IS MUST.

b) THESE QUESTIONS CAN WE SOLVED BY VARIOUS METHODS LIKE:--

1) ELIMINATION METHOD.

2) SUBSTITUTION METHOD.

3) CROSS MULTIPLICATION METHOD

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Answer 2

Answer:

Hope it helps!

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