Which expression is NOT a linear equation in the form a x + b = c (with a ≠ 0)?

Solve −x − 6 = 4 by isolating x.

Evaluate the following student's solution to 3x − 4 = 11: they added 4 to both sides to get 3x = 7, then divided by 3 and concluded x = 7/3. Determine whether the steps and final answer are correct, and if not provide the correct solution.

Which of the following is a correct formal expression of the division property of equality?

Solve 5 - (2/3)x = 1. Show the steps and identify the correct sequence of operations.

A car rental charges a flat fee of \$50 plus \$0.25 per mile driven. If a driver paid \$80 total, set up and solve an equation for the number of miles driven.

Solve: $7x-4=3x+12$

Solve the following equation for $x$: $\frac{1}{3}x-\frac{5}{6}=\frac{1}{2}$

Classify the following equation as a conditional equation, an identity, or a contradiction, and state its solution set: $5(x+2)=5x+10$

Which statement correctly describes the solution set to the linear inequality $x>3$?

A student solves the inequality $-4x>12$ and concludes that $x>-3$. Which statement correctly identifies the student's error and provides the proper solution?

Solve the compound inequality and express the solution in centered inequality form.