Solve the system of equations by the addition method. -3+y=15
-4-y=-1

A.
The solution is
nothing. (Simplify your answer. Type an ordered pair.)
B.
There are infinitely many solutions.
C.
There is no solution

1

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.

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