20 - (8+x) - ( x-1) =39
-13. Solve for
x
by simplifying both sides of the equation, then isolating the variable.
There is no variable.
x - x = 0
I'm sorry that was probably confusing x= -13. A way to check would to be replacing x with -13 and solving the equation so 20-(8+ -13)-(-13-1)= 39
try mathway.Com ms. She is wrong
20 - (8+x) - ( x-1) = 39
20 - 8 - x - x + 1 = 39
13-2x = 39
and you can see that x = -13
To solve the equation 20 - (8+x) - (x-1) = 39, we need to simplify it step by step.
Step 1: Simplify within parentheses
20 - (8+x) - (x-1) = 39
20 - 8 - x - x + 1 = 39
12 - 2x = 39
Step 2: Combine like terms
We have -2x on the left side of the equation. To eliminate the coefficient, we can add 2x to both sides:
12 - 2x + 2x = 39 + 2x
12 = 39 + 2x
Step 3: Isolate the variable
To isolate the variable on one side, we can subtract 39 from both sides:
12 - 39 = 39 + 2x - 39
-27 = 2x - 39
Step 4: Solve for x
To solve for x, we need to isolate it on one side of the equation. First, we can add 39 to both sides:
-27 + 39 = 2x - 39 + 39
12 = 2x
Next, divide both sides by 2:
12/2 = 2x/2
6 = x
So the solution to the equation 20 - (8+x) - (x-1) = 39 is x = 6.