A system of three linear equations in three variables is consistent and dependent. How many solutions to the system exist? none one three infinitely many.

Infinitely many solutions.

Step-by-step explanation:

The fact that they are dependent means they have at least 1 solutions, bu they all are also consistent, meaning that each equation is equal to the other 2 in the system, but multiplied by a real number k.

If we divide by this number k in each equation, we'll notice that all equations are equal and therefore they'll have infinite solutions.

20

step-by-step explanation:

answer: 0

step-by-step explanation: the positive, like 5, + its opposite, like -5 would be 0

5+(-5)=0, or 5-5=0