Question

5x-2y=21 and 3x+y=17 by substitution method ​

Answer 1

17-Aug-2018 · (iv) 3x – 5y = 1 (v) 5x + 8y = 9 5x + 2y = 19 2x + 3y = 4. Sol. (i) We have, x + y = 7 ….(1) 2x – 3y = 11 ….( 2) We shall eliminate x by substituting its value from one ...

Answer 2

Answer:

x= -13/11 and y = 182/11

Step-by-step explanation:

5x-2y=21 -------(1)

3x+y=17 ------(2)

(2) becomes

y= 17-3x ----(3)

put (3) in (1) :-

5x- 2 (17-3x) = 21

5x - 34+6x = 21

11x = 21 - 34

x= -13/11

put value of x in (3)

y = 17-3(-13/11)

y = 182/11

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