For the equation 80% of what number equals 40, the unknown number is 50.
If they are two different unknowns then it is: 4x+8y = 36 If they are the same unknowns then it is: 4x+8x = 36 in which x works out as 3
Let x represent the unknown number and use the known numbers to solve. Set up the equation: x + 9 = 15 (subtract 9 from each side to solve for the unknown number) x = 6
The equation can be written as 30 = 6b. To solve for the unknown number b, you would divide both sides of the equation by 6 to isolate b. Therefore, b = 30/6 = 5. This means that the number b is 5 in this scenario.
Substitute the number in the equation. If the resulting statement is true the number is a solution to the equation.
x is an unknown number/fraction which needs to be solved.
twice an unknown number less one and one-half times the same number equals two ---- Let the unknown number be "x":: Equation: 2x - (3/2)x = 2
x is an unknown number/fraction which needs to be solved.
For the equation 80% of what number equals 40, the unknown number is 50.
"430 5" is not an equation and it does not have an unknown value. So there can be no equation which has the same unknown value.
Variables stand in the place of unknown numbers. For example, in the following equation, one number is unknown: 2+x=5. The x takes the place of the number that is unknown.
x - 18 = 156. The x is the unknown quantity, the rest of the equation you have. Now solve it and prove it.
In mathematics, the term "root" refers to the solution(s) of an equation. Specifically, the roots of an equation are the values that make the equation true when substituted for the variable. The number of roots depends on the degree of the equation.
You don't use unknown variables to solve an equation. The purpose of solving an equation is to find the value of the variable so that it's no longer unknown.
a root number is a number in which satifies the unknown value of an equation. For example: x² - 1 = 0 the root of this equation would be 1 or -1 since when multiplied by itself, they both equal 1. Therefore, 1 - 1 = 0
That equation cannot be solved since there are 2 unknown in the equation (x and y) but only 1 equation. The number of unknowns must be equal to the number of equations (for simultaneous equations)
If they are two different unknowns then it is: 4x+8y = 36 If they are the same unknowns then it is: 4x+8x = 36 in which x works out as 3