The only y term is on the left side, so all variable terms are on the left side of the equation. The only a term is on the left side, so all variable terms are on one side of the equation. An equation...The only y term is on the left side, so all variable terms are on the left side of the equation. The only a term is on the left side, so all variable terms are on one side of the equation. An equation that is true for one or more values of the variable and false for all other values of the variable is a conditional equation. We say the solution to the equation is all of the real numbers.