Question

Subtracting 5 from thrice of 'x' results 4. What is the value of 15 is subtracted from nine times of 'x'.

Answer 1

Question:

Subtracting 5 from thrice of 'x' results 4. What is the value of 15 is subtracted from nine times of 'x'.

Let "3x" represent thrice of x

Equation:

$3x - 5 = 4$

Solution 1: Find x

     $3x - 5 = 4$

$3x - 5 + 5 = 4 + 5$     add 5 to both sides

           $3x = 9$

           $\frac{3x}{3} = \frac{9}{3}$            divide 3 to both sides

            $x = 3$

Solution 2: What is the value of 15 is subtracted from nine times of 'x'.

$=9x - 15$

$=9(3) - 15$     replace x with 3

$= 27 - 15$

$= 12$

Answer:

12

To know more about this type of lesson try watching The Organic Chemistry Tutor video on UTUBE.

Title: Algebra - How To Solve Equation Quickly!

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