Math Made Visible

Solve for x: The Balance Trick

Name: Solve for x: The Balance Trick
Duration: 290 s
Description: An equation is a balanced scale. Tip it and the = breaks. Solving is just un-doing — watch x get peeled free.

An equation is a balanced scale. Tip it and the = breaks. Solving is just un-doing — watch x get peeled free.

3x + 5 = 20. Before you touch it, see what it IS: a balance scale. The = sign is a promise that both pans weigh the same.

Concepts you just met

EquationsSolving for xInverse OperationsBalance