Question

if (2,-3) is the solution of the equation 2(x+1)-7(y-2)=k,find the value of k and find two more solutions

Answer 1

Answer:

k=41

two other solutions are(6,1) and (2,-3)

Step-by-step explanation:

2(x+1)-7(y-2)=k

given (2,-3) is it's solution so

2(2+1)-7(-3-2)=k

6-(-35)=41=k

now

2x+2-7y+14=41

2x-7y+16=41

2x-7y=25

andx-y=5 form equation

by given (2,-3)

2x-7y=25

x-y=5 ie x=5+y substitute

2(5+y)-7y=25

10+2y-7y=25

5y=-15 y=-3 x=5+y=5-3=2

putting y's value

(2,-3) is an answer for it.

hope it helps thanks

Answer 2

Answer:

2 and -3 is the answer

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