-(7-2x) + 7 = -7 Can someone please explain this to me
Mathematics · High School · Tue Nov 03 2020
llm
Answered on
Lets try and remove the brackets first so its easier for us to work. Since there is a - in front of (7-2x) then if we remove the brackets, the signs inside will switch from a + into a - and vice versa. So we will have:
-7+2x+7=-7
2x=-7
Divide both sides with 2.
2x/2=-7/2
x=-7/2