Question

Which system of equations has no solutions?

A. {3x +4y=5
{ 6x+8y=10
B. {7x-2y =9
{7x-2y=13
C. {2x-y=-11
{-2x+y=11
D. {3x+6y=1
{x+y=0

Answer 1

Answer:

the last one

Step-by-step explanation:

because nothing on adding results 0

Answer 2

Answer:

A.

3x + 4y = 5 .... (1)

6x + 8y = 10 .... (2)

multiplying by 2 in equation 1

6x + 8y = 10 ....(3)

subtract the equation 2 by 3

6x + 8y = 10

- 6x + 8y = 10

(-) (-)

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0