Answer :
We are given the equation:
[tex]$$
7 + x = 15.
$$[/tex]
Step 1: Subtract [tex]$7$[/tex] from both sides to isolate [tex]$x$[/tex].
[tex]$$
7 + x - 7 = 15 - 7.
$$[/tex]
Step 2: Simplify both sides.
[tex]$$
x = 8.
$$[/tex]
Thus, the solution to the equation is [tex]$x = 8$[/tex].
[tex]$$
7 + x = 15.
$$[/tex]
Step 1: Subtract [tex]$7$[/tex] from both sides to isolate [tex]$x$[/tex].
[tex]$$
7 + x - 7 = 15 - 7.
$$[/tex]
Step 2: Simplify both sides.
[tex]$$
x = 8.
$$[/tex]
Thus, the solution to the equation is [tex]$x = 8$[/tex].