Question

How many solutions does this system have?
x + 2y = -1
2x + 4y = -2

Answer 1

Infinitely many solutions.

Explanation:

x+2y=-1

2x+4y=-2

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x=-1-2y

2(-1-2y)+4y=-2

-2-4y+4y=-2

-2+0=-2

-2=-2

infinitely many solutions