The equation which can be used to find the number is 2n = -4, and the number is -2.
What do you mean by equation?
A mathematical statement which is known as an equation makes two expressions' values equal to each other. It is mathematical statement which says "this is equivalent to that," in different words. It appears to have an equal sign in the centre, with a mathematical expression on the right side, and a mathematical expression on the left side.
Let the number be n,
we have given that the number is being twice.
So, the number becomes 2n
And, it is also given that the this twice of the number is equal to -4.
So the equation becomes as:
2n = -4
on solving this equation, we get n = -2
Therefore, the equation is 2n = -4 and the number is -2.
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