Yes. the number is 0.2 (or the equivalent 1/5).
That word "equals" in there makes it an equation.
You can remove parenthesis or bracket by multiplying the number outside, with the number inside the bracket.
That means that multiplying both sides of the equation by the same non-zero number is a valid operation, which often helps you simplify the equation.
That equation has no solution. There is no possible number that's equal to 18 more than itself.
Multiplying a number by its inverse equals a * (1/a) = 1. The a cancels out.
When you multiply both sides by a negative number the inequality must be flipped over. You do not do that when multiplying by a positive number.
by adding, subtracting, dividing, and multiplying.
Call the unknown number "x", write the equationx / 10 = 12 Then isolate "x". In this case, this means multiplying both sides of the equation by 10.
That word "equals" in there makes it an equation.
For the equation 80% of what number equals 40, the unknown number is 50.
You can remove parenthesis or bracket by multiplying the number outside, with the number inside the bracket.
That means that multiplying both sides of the equation by the same non-zero number is a valid operation, which often helps you simplify the equation.
That equation has no solution. There is no possible number that's equal to 18 more than itself.
99x9999=989901
In general, if you apply the same operation to both sides of an equation, you get an equivalent equation - at least if you do simple things like adding, subtracting, multiplying by a non-zero number, and dividing by some number.
Multiplying a number by its inverse equals a * (1/a) = 1. The a cancels out.
In every possible way- because whole numbers and integers are the same.