Well first you substitute -3 for y and then subtract 12 from both sides of the equation and it should look like -15=-3x. Then divide 3 on both sides and you should end up getting 5=x.
Answer:
12.5
Step-by-step explanation:
Answer:

Step-by-step explanation:
The water density is approximately 1 gram per cubic centimeter, which means that 1 gram of water occupies a volume of a cubic centimeter. Hence, 2.179 grams occupies a volume of 2.179 cubic centimeters.
Let assume volume occupied by the water has a cube-like shape, whose side has the following measure:
![l = \sqrt[3]{2.179\,m^{3}}](https://tex.z-dn.net/?f=l%20%3D%20%5Csqrt%5B3%5D%7B2.179%5C%2Cm%5E%7B3%7D%7D)
