Answer:
x=6
Step-by-step explanation:
185
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,2021.22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40
I give up
Topic : Linear equations in two variables.
Given :
Solution :
Now,
(i) – (ii)
Now, substituting the value of x in Eq (i) :
Therefore,
x=1 y=-5
7(5x-2y=15) ---> 35x-14y=105
2(7x+7y=-28) --> + <u>14x+14y=-56</u>
49x=49 --->x=1
5(1)-2y=15 ---> 5-2y=15 ---> -2y=10 ---> y=-5