Question

solve this by elimination

Answer 1

hi friend ,


see the attachment

I think my answer is correct...hope its help you

Answer 2

11x + 3y = 51
2x + y = 10

to get any one of x or y equal ,multiply the 2nd equation with 3.

11x + 3y = 51
6x + 3y = 30

3y gets cancelled.
change sign,

11x =    51
-6x   = -30
---------------
  5x =   21
--------------

x = 21/5

put x value in second equation,

2 x + y = 10

y = 10 - 2x
y = 10 - 2(21/5)
y = 10 - 42/5

taking LCM,

y = 50 - 42/5
y = 8/5


so, 
x = 21/5 and y = 8/5



hope it helps!!!!