Answer:
B. x=10
Explanation:
We are given the equation:
20/x=2
To solve this, we must get x by itself. First, let's cross multiply.
20/x= 2/1
Multiply the denominator of the first fraction by the numerator of the second. Then, multiply the numerator of the first and the denominator of the second.
x*2= 20*1
2x=20
x is being multiplied by 2. The inverse of multiplication is division. So, divide both sides of the equation by 2.
2x/2 = 20/2
x= 20/2
x=10
Therefore, the answer is B. x=10