What is the answer to this equation 3u-8=6u+7

Pls! does anybody know a shortcut for answering these types of questions in the future?

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.