Solving Linear Equations: Variable on One Side Answers

Rahul solved the equation 2(x – ) – x = . In which step did he use the addition property of equality?

Solve the equation.−10x + 1 + 7x = 37

The equation 9(u – 2) + 1.5u = 8.25 models the total miles Michael traveled one afternoon while sledding, where u equals the number of hours walking up a hill and (u – 2) equals the number of hours sledding down the hill. Which is the value of u?

A coordinate grid with 2 lines. One line, labeled f(x) passing through (negative 3, 3), (0, 3), and the point (4, 3). The other line is labeled g(x) and passes through (negative 4, negative 3), (0, 0), and the point (4, 3).

A number, n, is added to 15 less than 3 times itself. The result is 101. Which equation can be used to find the value of n?