Question

If 7 + 3x = 22, thеn 2х =?
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Answer 1

2x = 10

Explanation:

7 + 3x = 22

7 - 7 + 3x = 22 - 7

3x = 15

3x / 3 = 15 / 3

x = 5

x * 2 = 5 * 2

2x = 10

Answer 2

2x = 10

Explanation:

First you need to solve for x

7 + 3x = 22

3x = 15

x = 5

Now that we know x we can calculate 2x

2x = 2 * 5 = 10