what is -2/3x+1/3+x=2/5? thanks.
-2/3x +1/3 +x = 2/5⇒ 1/3x + 1/3 = 2/5⇒ 1/3x = 2/5 -1/3⇒ x/3 = 1/15⇒ 15x = 3⇒ x = 3/15⇒ x = 1/5