Answer:
Step-by-step explanation:
To find the value of x, isolate it on one side of the equation.
First, subtract by 8 from both sides.
⇒ x+8-8=15-8
Solve.
Subtract the numbers from left to right.
⇒ 15-8=7
[tex]\Longrightarrow: \boxed{\sf{x=7}}[/tex]
I hope this helps! Let me know if you have any questions.