How many hours did they hire the van for? First we need to put this information into an equation. \(x\) is the number of hours they hired the van for. This is what we have to find. Their total bil ...

These problems typically involve finding the best-fitting solution to a system of linear equations, minimizing the sum of the squares of the residuals (the differences between observed and ...

An equation is a statement with an equals sign, stating that two expressions are equal in value, for example \(3x + 5 = 11\) Solving an equation means finding the value or values for which the two ...