Solving Equations with Equality

Determine whether a number is a solution

An equation is a statement indicating that two expressions are equal

Use the addition property of equality

Adding the same number to both sides of an equation does not change its solution.

Use the subtraction property of equality

Subtracting the same number from both sides of an equation does not change its solution

Use the multiplication poperty of quality

Multiplying both sides of an equation by the same nonzero number does not change its solution.

Use the division property of equality

Dividing both sides of an equation by the same nonzero number does not change its solution.

Use more than one property of equality to solve eq...

More complicated equations may require using more than one property to solve it.

Simplify expressions to solve equations

When solving equations, we should simplify the expressions that make up the left and right sides before applying any properties of equality. Often, that involves removing parentheses and/or combining like terms.