Determine whether t = 3 is a solution to 7t − 2 = 19. Show your check.

Which of the following is a linear equation in the form ax + b = c (with a ≠ 0) and correctly identifies a, b, and c?

A student solves 4 = x + 9 and reports: add 9 to both sides → 13 = x + 9, therefore x = 13. Critique the student's steps and choose the accurate correction.

Solve 4x + 2 = 10, verify your solution by substitution, and express the final answer in set notation.

Using the balance-scale analogy, which statement correctly explains why adding the same number to both sides of an equation yields an equivalent equation?