Answer:
2x = 10
Step-by-step 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
7 - 7 + 3x = 22 - 7
3x / 3 = 15 / 3
x * 2 = 5 * 2
