if 7 + 3x equals 22 then 2X equals what
7 + 3x = 223x = 22 - 73x = 15x = 15/3x = 5so if x = 5, then 2x = 2(5) = 10
7+3x=22subtract 7 from 223x=15divide 3 by 15x=5plug 5 in for x2x= 2(5)= 10