2x − 5 = 25
x = 15
Be sure to check your solution.
See part (a) for a possible strategy.
3x + 4 = ± 11
3x + 4 = 11 or 3x + 4 = −11
Be sure to check both of your solutions.
Use the eTool below to help solve the problem graphically.
Click the link at right for the full version of the eTool: CCA2 4-24 HW eTool