Question

Solve: 3x + 2y = 11 ; 2x + 3y = 4 *

Answer 1

Answer:

y= -2

X= 5

Step-by-step explanation:

1st equation: 3x+2y=11

x=11-2y/3 (equation i )

2nd equation: 2x+3y=4

Replacing value of x from from equation 1 into equation 2:

2x+3y=4

or, 2.(11-2y/3)+3y=4

or, (22-4y/6 )+3y =4

or, 22-4y+3y=24 {multiplying ;6*4=24}

or, 22-y=24

or, -y=24-22

or, -y=2

or, y= -2

Again,

replacing value of y in equation 2

2x+3y=4

or, 2x+3(-2)=4

or, 2x-6=4

or, 2x=4+6

or, 2x=10

or, x=10/2

or x=5

therefore x=5 , y= -2