The hibiscus, plumeria, and cassis petals are such a sweet-fruity flower smell that it reminds you of nectar instead of dry, dead flowers. Whereas most floral smells are dry, musky, and almost stifling this fragrance oil is sweet and almost a bit tangy.
The Standard Form for a linear equation in two variables, x and y, is usually given as Ax + By = C where, if at all possible, A, B, and C are integers, and A is non-negative, and, A, B, and C have no common factors other than 1.
Linear equations can have one or more variables. An example of a linear equation with three variables, x, y, and z, is given by: ax + by + cz + d = 0, where a, b, c, and d are constants and a, b, and c are non-zero. Linear equations occur frequently in most subareas of mathematics and especially in applied mathematics.