algebra;40-20=50-_?
40 - 20 = 20
50 - x = 20
Solve for x.
30
To solve the equation, 40 - 20 = 50 - _, we first need to isolate the variable, denoted by "_".
We can start by subtracting 20 from both sides of the equation:
40 - 20 - 20 = 50 - _ - 20
Simplifying, we have:
20 = 50 - _
Next, we want to get rid of the 50 on the right side of the equation. We can do this by subtracting 50 from both sides:
20 - 50 = 50 - _ - 50
Simplifying, we get:
-30 = -_
Finally, to solve for "_", we need to multiply both sides by -1 to eliminate the negative sign:
-1 * (-30) = -_ * -1
Simplifying gives us:
30 = _
Therefore, the value of "_" in the given equation is 30.