Solve using the addition property of equality. ​Don't forget to perform a check.

Question

xminus5equals7

Answer 1

To solve the equation x - 5 = 7 using the addition property of equality, we need to isolate the variable x by adding 5 to both sides of the equation.

x - 5 + 5 = 7 + 5
x = 12

Now, we need to perform a check by substituting x = 12 back into the original equation:

12 - 5 = 7
7 = 7

Since the equation holds true, the solution x = 12 is correct.