Question

How many solutions does the system of equations 4x−y=10 and 3x+5y=19 have?

Answer 1

Answer:

a1/a2=4/3

b1/b2=-1/5

a1/a2 =/= (not equal to) b1/b2

Therefore it has only one solution

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Answer 2

Answer:

Step-by-step explanation:

4x-y=10    ------ (1)

(1)x5 =>

20x-5y=50

3x+5y=19

23x=69

x=69/23

x=3

sub x=3 in (1)

4(3)-y=10

12-y=10

y=12-10

y=2

therefore, x=3 ; y=2

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