4x + 12 = 3(4 - X)
well 4x + 12 = 12 - 3x
4x + 12 -12 =12 - 3x -12
= 4x -12 = 12 -12 -9
= -8x -9
=8x/8 -9/8 = - 1 1/8 book says answer is 0 . not thinking right can someone help.
switching 12 around doesnt make the answer 0
4x +12 -12 = -3x + 12 -12
= 4x = -3x
=4x +3x = -3x + 3x
=7x not 0 plus the only rule is that whatever you do to the left you have to do to the right. the right in this equation is -3x so -3x -12, which is 3x -12 ,would be -9
masters , please explain to me how 7x = 0 or x = 0 the only thing I would know how to do is to devide 7x/7 0/7 = 0 ? plus Ive never seen wher you can swap + -3x + 12 or visa versa is this the case or am I missing something again. in other words the question was written out12 -3x so shouldnt the number come off the right. I think I just got it please verify.