suppose you pick x
1: 6x - 4
2: (6x-4)/2 = 3x-2
then 3x-2 = 19
3x = 21
x = 7
Delia picked 7
or you can just do everything with inverse operations on reverse order
last thing she did was divide by 2
so first thing we do is multiply by 2
19x2 = 38
the middle thing she did was subtract 4, so we will add 4
the first thing she did was to multiply be 6, so the last thing we will do is divide by 6
42÷6 = 7
How about that ???
i guess it will help.. thank you :)
math - 3 divided by 7 as a fraction of delia is 48, use variable d to represent ...
math - Pre Algebra Questions Sketch a model and obtain the sum. 3 + (-7)
Pre Calculus - Pre Calculus why is sin(-20)/cos 380 equal to tan (-200)
Pre-Calculus/Calculus - I am too embarassed to ask this Calculus (really pre-...
Pre-Calculus - I am in Honors Pre-Calculus and am having a hard time ...
philosophy - who were the key contributors to Christianity’s impact on ...
English - 1. She likes playing with her dog. 2. She likes playing with a puppy. ...
English - 1. The students are playing soccer against the teachers. (What is the ...
English - 1. The man is drawing cartoons on a drawing board. He has a pen on his...
math - danielle plays softball and basketball. however because she like ...