Question

X/2 + 2y/3 = -1 , x - y/3 = 3

Answer 1

Answer:

Step-by-step explanation:

x/2+2y/3=-1 -----(1)

x-y/3=3------(2)

for (1) take 6 as L.C.M

3x+4y/6=-1

now multiply it by 6...

3x+4y = -6

multiply (2) by 3...

x-y=9

now multiply (2) by 3

3x-3y=27

3x+4y=-6

using elimination method we get,

-7y=33

y=4.71....

now u can find x

hope it helps

Answer 2

Answer:

x = 2 ; y = -3

Step-by-step explanation:

Given equations are,

X/2 + 2y/3 = -1   --------------------------(1)

x - y/3 = 3      --------------------------(2)

From equation (1),

X/2 + 2y/3 = -1

=> (3x + 4y)/6 = -1

=> 3x + 4y = -6    ------------------------(3)

From Equation (2)

=> x - y/3 = 3

=> (3x - y)/3 = 3

=> 3x - y = 9

=> y = 3x - 9   -----------------------(4)

From equation (4) substitute Y value in equation (3)

=> 3x + 4(3x - 9) = -6

=> 3x + 12x - 36 = -6

=> 15x = 30

=> x = 30/15

=> x = 2

Substituting value of x in equation (4)

=> y = 3x - 9

=> y = 3(2) - 9

=> y = 6 - 9

=> y = -3