Twice a certain number is subtracted from 9 times the number.The result is 21. Find the number
9 x - 2 x = 21
7 x = 21
x = 21 / 7
x = 3
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Bukola
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3
3
9x_2x=21 7x=21 x=21 divide 7 x=3
pls which dominion is it from abomss entering jss3b
3
To find the number, we need to set up an equation based on the given information. Let's call the number that we're looking for "x".
According to the problem, twice the number is subtracted from 9 times the number. This can be written as:
9x - 2x
The problem also states that the result of this subtraction is 21. So we can write the equation as:
9x - 2x = 21
Now, we can solve this equation to find the value of x.
Combining like terms on the left side:
7x = 21
To isolate x, divide both sides of the equation by 7:
7x/7 = 21/7
This simplifies to:
x = 3
Therefore, the number is 3.