Hi there! :)
Answer:
x=23
*The answer must have a positive sign.*
Step-by-step explanation:
This lesson it's about addition property of equality.
First, you add by 8 from both sides of an equation.
[tex]x-8+8=15+8[/tex]
And then, you add by the numbers. Simplify and solve.
[tex]15+8=23[/tex]
Final answer: → [tex]x=23[/tex]
Hope this helps!
Thanks!
-Charlie
Have a great day!
:)
:D