It is known that the equation (A-2) xx-2-2 = 4 is a one variable linear equation about X. find the value of a and solve the equation

It is known that the equation (A-2) xx-2-2 = 4 is a one variable linear equation about X. find the value of a and solve the equation

It is known that the equation (A-2) x ^ 2-2x-2 = 4 is a linear equation of one variable with respect to X
a-2=0
a=2
Equation (A-2) x ^ 2-2x-2 = 4
-2x-2=4
x=-3

How to solve the equation x (1 / 100 + 25 / 100) = 1500

Solution 26 / 100x = 1500
X=1500/26%
X=1500* 0.26
X=390

Is x = 25 the solution of the equation 100 / x = 4? X = 25 is an equation. How can the equation be the solution of the equation? Some teaching parameters are right,

The upper positive solution, which is explained by geometry, is expressed by straight line as a solution of 100 / x = 4. The set is the solution of single element geometry 25 as a solution of 100 / x = 4

X/4+(100-X)/5=100-76

X/4+(100-X)/5=100-76
Multiply two by 20
5X+4(100-X)=24*20
5X+400-4X=480
5X-4X=480-400
X=80