Question

Maths assignment
solve the following questions: (Any 4)
What is the value of D for the simultaneous equation
3x-2y=6 and 2x+y = 11?​

Answer 1

Answer:

x = 4 and y = 3

Step-by-step explanation:

3x - 2y = 6..............equation 1

2x +y = 11.............. equation 2

From equation 2 we get

y = 11 - 2x.............equation 3

Putting this in equation 1

3x -2(11-2x) =6

=> 3x -22 + 4x =6

=> 3x +4x = 6 +22

=> 7x = 28

=> x = 28/7

=> x = 4

Putting value of x in equation 3 we get

y = 11 -2x

=> y = 11 - 2(4)

=> y = 11 - 8

=> y = 3

Answer 2

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Answer:

x = 4 and y = 3

Step-by-step explanation:

3x - 2y = 6..............equation 1

2x +y = 11.............. equation 2

From equation 2 we get

y = 11 - 2x.............equation 3

Putting this in equation 1

3x -2(11-2x) =6

=> 3x -22 + 4x =6

=> 3x +4x = 6 +22

=> 7x = 28

=> x = 28/7

=> x = 4

Putting value of x in equation 3 we get

y = 11 -2x

=> y = 11 - 2(4)

=> y = 11 - 8

=> y = 3