Answer: [tex]x=9[/tex]
Step-by-step explanation:
Given the equation [tex]x-2=7[/tex], you need solve for the variable "x", to do this, you need to remember the Addition property of equality, which states that:
[tex]If\ a=b,\ then\ a+c=b+c[/tex]
Therefore, add 2 to both sides of the equation to calculate the value of the variable "x", then you get the following result:
[tex]x-2+(2)=7+(2)[/tex]
[tex]x=9[/tex]
