Question

3x-7y+10=0 and y-2x-3=0 by elimination method​

Answer 1

3x - 7y + 10 = 0 can be written as 3x - 7y = - 10 .....(1)

y - 2x - 3 = 0 can be written as y - 2x = 3 .....(2)

Multiplying (1) by 2 and (2) by 3 we get,

6x - 14y = -20 .....(3)

3y - 6x = 9 ......(4)

Adding eq. (3) and eq.(4),

-11y = -11

Hence, y = 1

Using y's value in (4)

3(1) - 6x = 9

3 - 6x = 9

-6x = 6

Hence, x = -1.

Answer 2

Answer:

x=(-1)

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y=1

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