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