Question

Q11.SOLVE
X+5Y = 10
2X-2Y= 15 FIND VALUE OF X AND Y​

Answer 1

Answer:

x=10-5y

2(10-5y)-2y=15

20-10y-2y=15

-12y=-5

y=5/12

Answer 2

Answer:

by substitution method,

x+5y=10 ......(1) -----> y=10-x/5. .......(3)

2x-2y=15. ......(2)

put value of (3) in (2),

2x-2(10-x/5)=15

2x/1-20+2x/5=15

10x-20+2x/5=15

12x-20=15×5

12x-20=75

12x=95

x=95/12