Question

if 7 + 3x equals 22 then 2X equals what

Answer 1

7 + 3x = 22
3x = 22 - 7
3x = 15
x = 15/3
x = 5

so if x = 5, then 2x = 2(5) = 10

Answer 2

7+3x=22
subtract 7 from 22
3x=15
divide 3 by 15
x=5
plug 5 in for x
2x= 2(5)= 10