Answer:
x = 9
Step-by-step explanation:
First, we want to isolate variable x on the left side of the equation. We can do this by adding 13 to both sides.
x - 13 + 13 = - 4 + 13
[tex]x=9[/tex]
to find the answer, add 13 to both sides of the equation.
[tex]x-13=-4\\ +13 = +13 \\x=9[/tex]
