Solve for x:

4x + 12 = 8 (given)

4x = -4 (subtraction)

x = -1

what is the reason for the last step in the argument?

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Karen will divide her garden into equal parts. she will plant corn in 8/12 of the garden. what is the lowest number of parts she can divide her garden into?

Describe how you can act financially responsible.