Answer:
x = 10.2
Step-by-step explanation:
To solve for x, we have to isolate it on one side of the = sign. The number on the other side is the value of x.
20x - 4 = 200
First, we can remove -4 from the equation. The inverse of -4 is +4, so we will add 4 to both sides. Adding 4 to -4 will neutralize it, making its value 0.
20x - 4 + 4 = 200 +4
Simplify this.
20x = 204
Now, we have 20 · x = 204. The inverse of multiplication is division. To the times 20, we will divide by 20 as well.
[tex]\frac{20x}{20}[/tex] = [tex]\frac{204}{20}[/tex]
Simplify.
x = 10.2
We can check this by substituting the value of x, 10.2, for the variable.
20(10.2) - 4 = 200
204 - 4 = 200
200 = 200
Since the equation is true, the answer must be 10.2.
I hope this helps ^^ Good luck
