To solve the equation 21÷x=18, we first need to isolate the variable x.
We can do this by multiplying both sides of the equation by x:
21÷x * x = 18 * x
On the left side, the x in the numerator and the x in the denominator will cancel out, leaving us with just 21:
21 = 18 * x
Next, we want to isolate x by dividing both sides of the equation by 18:
21 ÷ 18 = 18 * x ÷ 18
On the left side, 21 divided by 18 is equal to 1.1666667 (rounded to 7 decimal places):
1.1666667 = x
So, the solution to the equation 21÷x=18 is x = 1.1666667, or approximately 1.17.
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