JZM1 Finite Mathematics Task 3: Order of Operations

Part A: Explain why 2 3(x -2) 5x 10 is not true as a rule To explain why this statement is not true as a rule, we must look at the order of operations or PEMDAS and solve the equation. To find the solution, we must first solve for x and then we can use the number found to plug back in to the equation and see if it is actually a true statement. To solve this equation using PEMDAS, the process would look like this:

Problem with steps Steps explained 2 3(x 2) 5x 10
Start with the original problem 2 3x 6 5x - 10 Distribute the 3 to the numbers that were inside the parenthesis 3x 4 5x - 10 combine the like terms of 2 and 6 with the result of -4 -2x 4 -10 To get x by...