In mathematics, an equation is a statement that asserts the equality of two expressions. Equations with variables on both sides are equations in which the variable appears on both the left and right-hand sides of the equation. For example, the equation $$3x – 5 = 2x + 7$$ has the variable \(x\) on both sides of the equation.
Checking equations with variables on both sides is important because it allows us to determine whether a given value of the variable makes the equation true. To check an equation with variables on both sides, we can use the following steps: