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Which system of equations has infinitely many solutions? A)6x + 3y = 12 3x + y = 9 B)2x + 3y = 6 4x + y = 8 C)12x +9y = 6 4x + 3y = 6 D)5x + 10y = 20 2x+4y=8​
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Which system of equations has infinitely many solutions?

A)6x + 3y = 12
3x + y = 9
B)2x + 3y = 6
4x + y = 8
C)12x +9y = 6
4x + 3y = 6
D)5x + 10y = 20
2x+4y=8​

User ESL
by
7.8k points

2 Answers

3 votes
The answer is D.

Divide the first equation by 5 to get
x + 2y = 4

Divide the second equation by 2 to also get
x + 2y = 4

Since they are the same equation it results in an answer that has infinitely many solutions.
User SebastianG
by
8.2k points
3 votes
D)
If you multiply 5x+10y=20 by 2 and 2x+4y=8 by 5 that are equal
User James Khoury
by
9.1k points
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