Question

solve the following pair of linear equations x-7y = 5 and 3x-4y = -2​

Answer 1

Answer:

x-7y=5. ........1

3x-4y=-2........2

Multiply eqn 1 by 3,

3(x-7y)=3(5)

3x-21y=15.........3

Subtracting eqn 2 from eqn 3,

3x-21y-3x+4y=15 -(-2)

-17y=17

y= -17/17

= -1

Putting the above value in eqn 1,

x-7(-1)=5

x+7=5

x=7-5

x = 2

Hence,x =2,y= -1.

Answer 2

Step-by-step explanation:

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