Question

5%of7%of5%ofx is 105 then x is

Answer 1

Answer:

To solve the given linear equation, 5x + 5 = 105, for the variable x begin by subtracting 5 from both sides of the equation in order to begin isolating the variable x on one side, in this case the left side, as follows:

5x + 5 = 105 (Given)

5x + 5 - 5 = 105 - 5

5x + 0 = 100

5x = 100

Now, divide both sides of the equation by 5 in order to isolate x on the left side, thus finally solving the equation for x as follows:

(5x)/5 = 100/5

(5/5)x = 100/5

(1)x = 20

x = 20

CHECK (ALWAYS PERFORM THIS STEP, AND DO SO BACK IN THE ORIGINAL, GIVEN EQUATION!):

5x + 5 = 105

5(20) + 5 = 105

100 + 5 = 105

105 = 105

Therefore, x = 20 is indeed the solution to the given equation.