Sehyr solved the equation w/2−7=11. She seems to have made an error in her work because the solution she found does not work. Observe Sehyr’s work to find her error and correct it to find the solution to the equation.
Sehyr’s work:
w/2−7=11
w/2−7+7=11+7 Using the Addition Property of Equality
w/2/2=18/2 Using the Division Property of Equality
w=9
The solution to the equation is
1 answer
w = 9.