Question

Draw the
following pair of linear equation
two variables and solve
them
2x+y-7=0
4x-3y+1=0​

Answer 1

Answer:

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Explanation:

** 2x + y = 7.................eq (i)*2

** 4x - 3y + 1 = 0

or, 4x - 3y = -1 ....................eq (ii)*1

Multiply eq (i) by 2 and eq (ii) by 1 we get,

4x + 2y = 14

4x - 3y = -1

(-) (+) (+) ..........(By subtraction)

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or, 2y + 3y = 14 + 1

or, 5y = 15

or, y = 15/5

or, y = 3

Putting the value of y in eq (i) we get,

2x + y = 7

or, 2x + 3 = 7 (since y = 3)

or, 2x = 7 - 3

or, 2x = 4

or, x = 4/2

or, x = 2

Answer:- x = 2

y = 3

Answer 2

Answer:

multiple equitation 1 by 3

6x + 3y -21 =0

4x - 3y+ 1 = 0

Explanation:

x = 2

and putting the value of x in EQn 2