A number that stands alone in an equation is called a constant. In algebraic expressions, constants are terms that do not change and have a fixed value. They are typically represented by letters such as "a," "b," or "c" when their specific value is unknown. Constants play a crucial role in mathematical equations and formulas by providing a fixed reference point for calculations and comparisons.
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It is to make the variable the subject of the equation.
each of the four regions created on the coordinate plane by the x- and y-axes.
If both sides of an equation are not equal, it won't be an equation any more! In solving equations, the strategy is to change both sides in the same way, so that an 'equivalent' equation is produced. An equivalent equation has the same solution as the original equation. You are aiming for an equation in which the variable is alone on one side. The quantity on the other side is the solution.
isolate the variable
It can be either. If it takes a noun as an object, it is a preposition. It if stands alone or with other adverbs, it is an adverb. It can, rarely, be an adjective.