Question

(iv) 4x + y=34; x+4y= 16
uations.
(ii) +5y = 13 ; 2x+ =19
2.​

Answer 1

Answer:

4x + y = 34.......[1]

x + 4y = 16........[2]

Adding [1] and [2]

5x + 5y = 50

x + y = 10........[3]

Subtractimg [2] from [1]

3x - 3y = 18

x - y = 6........[4]

Adding [4] and [3]

2x = 16

x = 8

put x = 8 in [3]

8 + y = 10

y = 2

so solution set is x = 8 and y = 2