Question

the equation 3x + 3y=9
and 4x+6y=18 have _______ solutions
​

Answer 1

Answer:

Unique solution

Step-by-step explanation:

a1/a2 = 3/4

b1/b2 = 3/6 = 1/2

c1/c2 = 9/18 = 1/2

a1/a2 ≠ b1/b2 = c1/c2

Unique solution

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Answer 2

Answer:

(3x+3y=9)×4=12x+12y=36

(4x+6y=18)×3=12x+18y=54

-

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-6y=-18

y=3

y value put in equation 1

3x+3×3=9

3x+9=9

3x=9-9

3x=0

x=0

Ans-x=0 ,y=3