Question

Ex. (2) Solve : 3x + 2y = 29; 5x - y = 18
Solution : 3x + 2y = 29. .. (I) and 5x - y = 18 ... (II)
Let's solve the equations by eliminating 'y'. Fill suitably the boxes below.
Multiplying equation (II) by 2.
.. 5x X - ух
= 18 x
:. 10x - 2y =
(III)
Let's add equations (I) and (III)
3x + 2y
= 29
.
+
..
:: x = 0
Substituting x = 5 in equation (1)
3x + 2y = 29
.. 3 x
2y = 29
+ 2y = 29
2y = 29
2y
:: y = 0
(x, y) = (O, is the solution.
(7) Solye ; 15x + 17y = 21; 17x + 15y = 11
..​

Answer 1

Answer:

3x + 2y = 29 …(i) and 5x- y = 18 …(ii) Let’s solve the equations by eliminating ‘y’. Fill suitably the boxes below. Multiplying equation (ii) by 2, we get Read more on Sarthaks.com - https://www.sarthaks.com/841526/solve-3x-2y-29-5x-y-18

Answer 2

Answer ❣️-------

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