Question

If we add 7 to twice a number, we get 49. Find If we subtract 22 from three times a number, we get 68. Find the number​

Answer 1

Step-by-step explanation:

Let "x" represent the number we are finding.

Let "2x" represent twice the number.

2x + 7 = 49

     2x = 49 - 7

     2x = 42

     $\frac{2x}{2} = \frac{42}{2}$

       x = 21

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Let "x" represent the number we are finding

Let "3x" represent three times the number.

3x - 22 = 68

       3x = 68 + 22

       3x = 90

       $\frac{3x}{3} = \frac{90}{3}$

         x = 30

Answer:

1. x = 21
2. x = 30

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