Answer:
x = -5
Explanation:
You want the solution to 8-(x+12)=1.
Solution
Eliminate parentheses using the distributive property:
8 -x -12 = 1
Combine like terms.
-4 -x = 1
We like to have the x-coefficient be positive, so we're going to add x to both sides:
-4 = 1 +x
Subtract 1 to get x by itself.
-5 = x
The value of x is -5.
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Additional comment
We could have solved this by adding 4 to both sides in the third step:
-x = 5
Now, we need to multiply (or divide) by -1:
x = -5
Any operation (add, subtract, multiply, divide, root, log, or any other function) is done to both sides of the equation, according to the properties of equality.